powerpc/Makefile: Assemble with -me500 when building for E500

Some of the assembly files use instructions specific to BookE or E500,
which are rejected with the now-default -mcpu=powerpc, so we must pass
-me500 to the assembler just as we pass -me200 for E200.

Fixes: 4bf4f42a2f ("powerpc/kbuild: Set default generic machine type for 32-bit compile")
Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
James Clarke 2018-07-12 22:41:49 +01:00 • committed by Michael Ellerman
commit 4e4a4b75cc