platform: msm8996: Add support for LPAE

Update the MMU table to add support for LPAE mapping. Modify the
addresses used for lk, scratch, rpmb buffer to be aligned to 2mb
boundary.

Change-Id: Ieffd04d35102a8622da5509647ed80a4d61ff6ad
diff --git a/platform/msm8996/include/platform/iomap.h b/platform/msm8996/include/platform/iomap.h
index a4e7d54..2244632 100644
--- a/platform/msm8996/include/platform/iomap.h
+++ b/platform/msm8996/include/platform/iomap.h
@@ -191,8 +191,8 @@
  * as device memory, define the start address
  * and size in MB
  */
-#define RPMB_SND_RCV_BUF            0x90D00000
-#define RPMB_SND_RCV_BUF_SZ         0x1
+#define RPMB_SND_RCV_BUF            0x90F00000
+#define RPMB_SND_RCV_BUF_SZ         0x2
 
 #define TCSR_BOOT_MISC_DETECT       0x007B3000