SPM: Changes to Secure Partition API for FLIH

The patch includes the changes to Secure Partition API for FLIH
defined by FF-M v1.1 alpha:
 - Adding psa_reset_signal() which is for FLIH signals
 - Limiting psa_eoi() to SLIH signals

Change-Id: I6b99eb6df3013c898627a48fa98d41c0e7bc5888
Signed-off-by: Kevin Peng <kevin.peng@arm.com>
6 files changed