ARM: dts: msm: Add support for RPMHCC on TUNA platform

Add support for rpmh clock controller nodes on TUNA platform.
While at it, keep rpmhcc node as dummy for TUNA rumi platform.

Change-Id: I97b2a42df7886295efd8b4a176257fe45a571bae
Signed-off-by: Anaadi Mishra <quic_anaadim@quicinc.com>

qcom/tuna-rumi.dtsi

@@ -190,3 +190,9 @@
 &tsens3 {
 	status = "disabled";
 };
+
+&rpmhcc {
+	compatible = "fixed-clock";
+	clock-output-names = "rpmh_clocks";
+	clock-frequency = <19200000>;
+};