gralloc1: Update SECURE_DISPLAY usage bit value

Update the value of GRALLOC1_CONSUMER_USAGE_PRIVATE_SECURE_DISPLAY
as it conflicts with BufferUsage::GPU_DATA_BUFFER.

Change-Id: I7c236705528e6fc9d06ba298527e314da030bd34
CRs-Fixed: 2169110
diff --git a/libgralloc1/gralloc_priv.h b/libgralloc1/gralloc_priv.h
index a7ed5a8..7553017 100644
--- a/libgralloc1/gralloc_priv.h
+++ b/libgralloc1/gralloc_priv.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2011-2018, The Linux Foundation. All rights reserved.
  * Not a Contribution
  *
  * Copyright (C) 2008 The Android Open Source Project
@@ -66,7 +66,7 @@
 #define GRALLOC1_CONSUMER_USAGE_PRIVATE_WFD            0x00200000
 
 /* This flag is used for SECURE display usecase */
-#define GRALLOC1_CONSUMER_USAGE_PRIVATE_SECURE_DISPLAY 0x01000000
+#define GRALLOC1_CONSUMER_USAGE_PRIVATE_SECURE_DISPLAY 0x02000000
 
 /* This flag is used to indicate P010 format */
 #define GRALLOC1_CONSUMER_USAGE_PRIVATE_10BIT       GRALLOC1_PRODUCER_USAGE_PRIVATE_10BIT