imx6-gateworks: enable new canbus packages

The canbus package was recently changed to a more active project. This patch
updates the default package names to include the same functionality as before.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40531 3c298f89-4303-0410-b956-a3cf2f4a3e73
kobs-ng: Add support for overriding size

By default kobs-ng will use the size of /dev/mtd0 for the IMX bootstreams.
This patch allows overriding that size in order to reserve space at the end
of the mtd partition for u-boot.img in the case of using an SPL bootloader.

For example, to flash an SPL bootloader that loads u-boot.img from 0xe0000
(14MB) offset in a 16MB /dev/mtd0:

  kobs-ng init -v -x --search_exponent=1 --chip_0_size=0xe00000 SPL
  nandwrite --start=0xe00000 --pad /dev/mtd0 u-boot.img

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40532 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] flex: upgrade to version 2.5.39

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40533 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] mpc: upgrade to 1.0.2

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40534 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] scons: upgrade to 2.3.1

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40535 3c298f89-4303-0410-b956-a3cf2f4a3e73