imx6: fix file names when building images

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38434 3c298f89-4303-0410-b956-a3cf2f4a3e73
gcc 4.8-linaro: backport an upstream fix to fix asm goto miscompilation

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38435 3c298f89-4303-0410-b956-a3cf2f4a3e73