m68k: remove BR2_GCC_TARGET_ARCH

Setting BR2_GCC_TARGET_ARCH is possible, but breaks
external toolchain users. m68k/cf defconfigs just
working without it.

Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
1 file changed