arm/dt: msm: Add alternate IOMMU clocks on msm8974

Use alternate core clocks on the KGSL and Venus IOMMUs,
updating the device tree and clock table accordingly.

Change-Id: Ie201dbe8af37b54c8f479d4788b54010caaea360
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm-iommu.dtsi b/arch/arm/boot/dts/msm-iommu.dtsi
index 952f517..0e2ddce9 100755
--- a/arch/arm/boot/dts/msm-iommu.dtsi
+++ b/arch/arm/boot/dts/msm-iommu.dtsi
@@ -76,6 +76,7 @@
 		reg = <0xfdc84000 0x10000>;
 		vdd-supply = <&gdsc_venus>;
 		qcom,iommu-smt-size = <16>;
+		qcom,needs-alt-core-clk;
 		status = "disabled";
 
 		qcom,iommu-ctx@fdc8c000 {
@@ -108,6 +109,7 @@
 		reg = <0xfdb10000 0x10000>;
 		vdd-supply = <&gdsc_oxili_cx>;
 		qcom,iommu-smt-size = <32>;
+		qcom,needs-alt-core-clk;
 		status = "disabled";
 
 		qcom,iommu-ctx@fdb18000 {