docs(spm): add other-s-interrupts-action field to sp manifest

Also, the `run-time-model` field is removed from SP manifest binding
as it is not supported by Hafnium(SPMC).

Change-Id: Id8a91b2608791667e6285b3c5b879ec84612149d
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
1 file changed