iommu/arm-smmu: Remove depends on ARCH

Each qcom ARCH platform should select MSM_TZ_SMMU by
needed via select in Kconfig or use defconfig, while
driver itself is ARCH independent, so remove depends
on ARCH from MSM_TZ_SMMU Kconfig.

Change-Id: I877a15b74032236ac71b84e672e135a20589ba36
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
index 2c67c01..f0267b4 100644
--- a/drivers/soc/qcom/Kconfig
+++ b/drivers/soc/qcom/Kconfig
@@ -386,8 +386,8 @@
 	  configured separately.
 
 config MSM_TZ_SMMU
-	depends on ARCH_MSM8953 || ARCH_MSM8909
 	bool "Helper functions for SMMU configuration through TZ"
+	default n
 	help
 	  Say 'Y' here for targets that need to call into TZ to configure
 	  SMMUs for any reason (for example, for errata workarounds or