arm64: Switch remaining uses of __ASSEMBLY__ to __ASSEMBLER__

Some arm64 files that were imported from other projects use the
__ASSEMBLY__ macro to test whether a header is included from a C or an
assembly file. This patch switches them to the coreboot standard
__ASSEMBLER__, which has the advantage of being a GCC builtin so that
the including file doesn't have to supply it explicitly.

Change-Id: I1023f72dd13857b14ce060388e97c658e748928f
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/27237
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
4 files changed