AndroidBoot: Flag to distinguish VB key used

Add new flag to decide the type of key used
for setting ROT during OTA test cases.

Change-Id: I9c970be3e1fec0709cfd8226c2679298dcce0bdf
diff --git a/platform/msm_shared/boot_verifier.c b/platform/msm_shared/boot_verifier.c
index 4a219f1..7ee4cba 100644
--- a/platform/msm_shared/boot_verifier.c
+++ b/platform/msm_shared/boot_verifier.c
@@ -450,7 +450,7 @@
 }
 #endif
 
-#if VERIFIED_BOOT_2
+#if VERIFIED_BOOT_2 && !VB1_KEY_USED
 bool send_rot_command(uint32_t is_unlocked)
 {
 	int ret = 0;