Add build script of Linaro Toolchain for Android

Add linaro-build.sh to support Linaro Android toolchain.

Usage:
  --prefix=
  --toolchain-src=
  --with-gcc=
  --apply-gcc-patch=

Patched by Luse Cheng <luse@0xlab.org>
Trivial syntax fix
Disable -Werror in binutils

Since we don't tend to maintain binutils at the moment, disable -Werror
in build process instead.
Use NDK style help messages
Merge branch 'master' of git://android.git.kernel.org/toolchain/build

Conflicts:
	Makefile.in
Merge branch 'master' of git://android.git.kernel.org/toolchain/build

Conflicts:
	Makefile.in
Disable -Werror in libbfd
Merge branch 'master' of git://android.git.kernel.org/toolchain/build
use `basename $0` instead of hard-coded program name
Merge branch 'master' of git://android.git.kernel.org/toolchain/build
Merge commit '0b2cc1f78f220061012f4013faa94fdd416e41c3' into linaro-master
Add --with-sysroot to fix Linaro Android toolchain linking fail with FDO

This change is expected to fix Linaro Android toolchain linking fail
with FDO (Feedback Directed Optimization) with Android toolchain
benchmark suite.

Patched by Luse Cheng <luse@0xlab.org>
Add --enable-graphite option to build script

GCC 4.5 and up supports graphite optimization, and cloog and ppl
are required.  This change attempts to support some combinations
of ppl and cloog/cloog-ppl libraries.  Since cloog and ppl are
written in C++, it implies we might suffer from C++ ABI breakage
problems when host environment changes, that is a well-known issue
in GNU/Linux distributions.  Thus, we have to link to static C++
runtime library (libstdc++) to avoid depending on the host version.

Default: yes
Regenerate configure script
Integrate Linaro-GDB in Android toolchain build system

Patched by Luse Cheng <luse@0xlab.org>
linaro-build: Hide the enumeration of gcc-patches
linaro-build: Improve the location for apply patches
linaro-build: Only perform "make install" when 'make' is complete
Improve the messages when expected package directory is not found
linaro-build: Fix typo