WebRtcIsacfix_Time2SpecNeon and _Spec2TimeNeon: Fix stack alignment

The ABI
(http://infocenter.arm.com/help/topic/com.arm.doc.ihi0042e/IHI0042E_aapcs.pdf)
says to 8-byte-align stack frames. That means we have to push an even
number of registers on function entry if we want to be able to make
subroutine calls without adjusting the stack first.

BUG=4177
R=bjornv@webrtc.org, henrik.lundin@webrtc.org, zhongwei.yao@arm.com

Review URL: https://webrtc-codereview.appspot.com/33149004

Cr-Commit-Position: refs/heads/master@{#8214}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8214 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed