ArmPkg/PL390Gic: Do not try to clear spurious interrupts.
ArmPkg/PL390Gic: Do not try to clear spurious interrupts.

If we have a pending spurious interrupt we should not try to clear it,
just ignore.

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



git-svn-id: 5648d1bec6962b0a6d1d1b40eba8cf5cdb62da3d@14265 6f19259b-4bc3-4df7-8a09-765794883524

MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2