defconfig: add config options for slave side protection on msm8953

Add the necessary config options to support the slave side protection
that exists on msm8953.

Change-Id: I51973048287eb45700c5cfc808d943f98c00f2b5
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
diff --git a/arch/arm64/configs/msm8953_defconfig b/arch/arm64/configs/msm8953_defconfig
index ef6e00f..458ea56 100644
--- a/arch/arm64/configs/msm8953_defconfig
+++ b/arch/arm64/configs/msm8953_defconfig
@@ -476,6 +476,7 @@
 CONFIG_MSM_SMEM=y
 CONFIG_MSM_SMD=y
 CONFIG_MSM_SMD_DEBUG=y
+CONFIG_MSM_TZ_SMMU=y
 CONFIG_TRACER_PKT=y
 CONFIG_MSM_SMP2P=y
 CONFIG_MSM_IPC_ROUTER_SMD_XPRT=y