SDEI: updata the affinity of shared event

when updata routing of an SDEI event, if the registration flags
is SDEI_REGF_RM_PE, need to updata the affinity of shared event.
Signed-off-by: Tony Xie <tony.xie@rock-chips.com>
Change-Id: Ie5d7cc4199253f6af1c28b407f712caac3092d06

services/std_svc/sdei/sdei_main.c

@@ -314,6 +314,9 @@ static int sdei_event_routing_set(int ev_num, uint64_t flags, uint64_t mpidr)
 
 	/* Update event registration flag */
 	se->reg_flags = (unsigned int) flags;
+	if (flags == SDEI_REGF_RM_PE) {
+		se->affinity = (mpidr & MPIDR_AFFINITY_MASK);
+	}
 
 	/*
 	 * ROUTING_SET is permissible only when event composite state is