msm: restore alpha/ftrace.h back to original state

Due to some mis-merging by git, alpha/include/asm/ftrace.h was
accidently modified, restore it back to its state before the merge.

Change-Id: I0a55f84a5ccdbac44ed61aba85c88aaaa71b8f8c
Signed-off-by: Kumar Gala <galak@codeaurora.org>