arm/dt: msm8974: Disable Q6 MSS PIL device node for RUMI

The Q6 MSS PIL driver is not compatible with RUMI.  Linux
crashes if this driver is probed on a RUMI device.  Therefore,
configure the Q6 MSS PIL device node so that it is disabled for
RUMI.

Change-Id: Icf7284a7d13774a8b72deb31c178217c20c737a8
Signed-off-by: David Collins <collinsd@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8974-rumi.dts b/arch/arm/boot/dts/msm8974-rumi.dts
index b179d94..2cf68b8 100644
--- a/arch/arm/boot/dts/msm8974-rumi.dts
+++ b/arch/arm/boot/dts/msm8974-rumi.dts
@@ -103,4 +103,8 @@
 	qcom,pronto@fb21b000 {
 		status = "disable";
 	};
+
+	qcom,mss@fc880000 {
+		status = "disable";
+	};
 };