chre: fix CHRE_EVENT_MESSAGE_FROM_HOST senderInstanceId

Should always be CHRE_INSTANCE_ID.

Bug: 62222604
Test: Verify HelloWorld CHQTS test passes (requires test rebuild)
Change-Id: Icc70383d0e7e135a6b05a36dc12f6760c03904ad
Signed-off-by: Ben Fennema <fennema@google.com>
diff --git a/firmware/app/chre/common/chre_app.c b/firmware/app/chre/common/chre_app.c
index c828314..aae23cf 100644
--- a/firmware/app/chre/common/chre_app.c
+++ b/firmware/app/chre/common/chre_app.c
@@ -241,6 +241,7 @@
         data = ((struct TimerEvent *)eventData)->data;
         break;
     case EVT_APP_FROM_HOST:
+        srcTid = CHRE_INSTANCE_ID;
         evt = CHRE_EVENT_MESSAGE_FROM_HOST;
         data = &u.msg;
         u.msg.message = (uint8_t*)eventData + 1;
@@ -250,6 +251,7 @@
     case EVT_APP_FROM_HOST_CHRE:
     {
         const struct NanohubMsgChreHdr *hdr = eventData;
+        srcTid = CHRE_INSTANCE_ID;
         evt = CHRE_EVENT_MESSAGE_FROM_HOST;
         data = &u.msg;
         u.msg.message = hdr + 1;