Send unsolicited time response to first signal strength query after loadvm

Change-Id: I9c6260493d42564ee3aa34799313368bb2de7d4d
diff --git a/android/help.c b/android/help.c
index 93ae8b1..f226cf6 100644
--- a/android/help.c
+++ b/android/help.c
@@ -721,6 +721,17 @@
 }
 
 static void
+help_no_snapshot_update_time(stralloc_t*  out)
+{
+    PRINTF(
+    "  Prevent the emulator from sending an unsolicited time update\n"
+    "  in response to the first signal strength query after loadvm,\n"
+    "  to avoid a sudden time jump that might upset testing. (Signal\n"
+    "  strength is queried approximately every 15 seconds)\n\n"
+    );
+}
+
+static void
 help_snapshot_list(stralloc_t*  out)
 {
     PRINTF(