ARM: dts: Add rotator OT limit optional DT property

This property can be used to dynamically change writeback
path OT. Based on different targets this can be tuned to
meet performance requirements.

Change-Id: Ia74f0066c9b38739ac7b074656e8054a2eb1ac2e
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8226-mdss.dtsi b/arch/arm/boot/dts/msm8226-mdss.dtsi
index 40576c9..8a98d5c 100644
--- a/arch/arm/boot/dts/msm8226-mdss.dtsi
+++ b/arch/arm/boot/dts/msm8226-mdss.dtsi
@@ -58,6 +58,7 @@
 		qcom,mdss-wb-off = <0x00011100 0x00013100>;
 		qcom,mdss-intf-off = <0x00000000 0x00021300>;
 		qcom,mdss-rot-block-size = <64>;
+		qcom,mdss-rotator-ot-limit = <2>;
 		qcom,mdss-smp-mb-per-pipe = <4>;
 		vdd-cx-supply = <&pm8226_s1_corner>;