This reverts commit 94a85f6636
There is a smoke test failure for Prime but Crespo/Stingray are fine. Will revert the change for now until further investigation is made.
If compiling userland code with -std=c99, the current header produces an
error. The content of this header originally is a kernel internal header,
where asm() is acceptable. In a header visible to userland, this should be
__asm__ instead.
Change-Id: I4d3188dd96f7836148ca89f5053d0389dd459d6e