gcc: update 4.9 to linaro 2014.10

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43003 3c298f89-4303-0410-b956-a3cf2f4a3e73
binutils: remove linaro version string, it confuses gcc lto support detection

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43004 3c298f89-4303-0410-b956-a3cf2f4a3e73