ArmPlatformPkg/ArmVExpressLibCTA9x4: Fixed the initial secondary core bringup when...

ArmPlatformPkg/ArmVExpressLibCTA9x4: Fixed the initial secondary core bringup when remapping DRAM at 0x0

If the DRAM is remapped at 0x0 then we need to wake up the secondary cores from wfe
(waiting for the memory to be initialized) as the instruction is still in the remapped
flash region at 0x0 to make them jumping into the C-code which lives in the NOR1 at 0x44000000 before
the region 0x0 is remapped as DRAM.

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@14910 6f19259b-4bc3-4df7-8a09-765794883524