Default to secure mode

If ro.secure is not set for some reason, default to secure mode.

Change-Id: Id0ce3ea5507a3f9690332fb5a2daef7d3303481d
diff --git a/adb/adb.c b/adb/adb.c
index b0a70dc..a03ee64 100644
--- a/adb/adb.c
+++ b/adb/adb.c
@@ -871,7 +871,7 @@
     */
     property_get("ro.kernel.qemu", value, "");
     if (strcmp(value, "1") != 0) {
-        property_get("ro.secure", value, "");
+        property_get("ro.secure", value, "1");
         if (strcmp(value, "1") == 0) {
             // don't run as root if ro.secure is set...
             secure = 1;