fix(interrupts): dont enable virtual maintenance interrupts

SPMC enables the following virtual maintenance interrupts by default
for each Secure Partition:
  > MANAGED_EXIT_INTERRUPT_ID
  > NOTIFICATION_PENDING_INTERRUPT_INTID

Hence, no need to send a request to SPs to enable them.

Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: I7fc605b9b78ad759728909cd28ad2d2083c5de54
4 files changed