linux: simplify dtb variables

Only qstrip once and add a KERNEL_DTBS helper variable to simplify the dtb
rules.

No functional change.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
linux: handle new dtb location since 3.8-rc1

.dtb files are now generated in arch/$ARCH/boot/dts instead of
arch/$ARCH/boot, so extend the LINUX_INSTALL_DTB rule to look there
as well.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-crosstool-ng: update PPL and CLoog versions in default configs

We have updated our Crosstool-NG configuration to gcc 4.6.x, but the
PPL and CLoog versions were not updated accordingly. With gcc 4.6.x,
at least PPL 0.11 is needed, and only CLoog > 0.15.9 can work with PLL
0.11.

Fixes:

  http://autobuild.buildroot.org/results/c22758a30c3b8abb582150cefd7099605c527e14/build-end.log

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain/crosstool-ng: update config for glibc-based toolchains

Update the version of glibc to be used, since older versions are
broken with the currently-used binutils versions.

Fixes build issues ending with:
    tmpfs/ccvkz3ro.s:33: Error: CFI instruction used without
    previous .cfi_startproc

This new version does not have RPC support, so update the Config.in.

CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: add support for 'Sourcery CodeBench MIPS 2012.03'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: add support for 'Sourcery CodeBench MIPS 2012.09'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: remove support for 'Sourcery CodeBench MIPS 4.4'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: remove support for 'Sourcery CodeBench MIPS 2011.03'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: simplify many Sourcery CodeBench download URLs

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: add support for 'Linaro AArch64 12.11'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: add support for 'Linaro AArch64 12.12'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: add support for 'Linaro ARM 2012.12'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain-external: remove support for 'Linaro ARM 2012.09'

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
ffmpeg: make ARM optimizations explicit

The ffmpeg configure script tries to autodetermine ARM optimizations by
building a small code snippet with AS.
If AS allows higher-level (>generic) assembly instructions then it
passes and enables the relevant optimization path.
Some toolchains allow/default to more than generic asm and then fail
when the real code is built.
Fixes:
http://autobuild.buildroot.net/results/b6e1225a07a58cc7544e37bc55675be71e2b5088/

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
dstat: needs mmu

Because python needs MMU, fixes:
http://autobuild.buildroot.net/results/7bb46ed3ffb46741b7cb7e3edd33f4729409b2ef/

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Merge branch 'master' of git://git.buildroot.net/buildroot