ArmPkg/CpuDxe: Stack Pointer is not 8-bytes aligned in AArch32 interrupt handling

See section "2.1 The need to align SP to a multiple of 8 at conforming call sites" in
"Advisory Note. SP must be 8-byte aligned on entry to AAPCS-conforming functions"
Source: http://infocenter.arm.com/help/topic/com.arm.doc.ihi0046b/IHI0046B_ABI_Advisory_1.pdf

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15553 6f19259b-4bc3-4df7-8a09-765794883524
4 files changed