fix(rme): return value of host_enter_realm_execute call

A failing realm command might be reported as pass if the exit reason
is RMI_EXIT_HOST_CALL. For RMI_EXIT_HOST_CALL exit reason, return true
only when host_call_result is TEST_RESULT_SUCCESS.

This change also fixes the expected RmiRecExit reason for PMU tests.

Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: I37789a2c2941eec83fe1ebc54a0107192fd2fc11
4 files changed