arm/dt: 8226: Reduce tmc-etr to USB block transfer size

The total tmc-etr to USB pipe memory for 8x26 is 2K. Reduce
the block transfer size to 512 bytes so that it is less than
the total pipe memory available.

Change-Id: Icbc60833d0ef4d3de8d98ce50cb12247955807bb
Signed-off-by: Pushkar Joshi <pushkarj@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8226-coresight.dtsi b/arch/arm/boot/dts/msm8226-coresight.dtsi
index 35d329c..993b4e6 100644
--- a/arch/arm/boot/dts/msm8226-coresight.dtsi
+++ b/arch/arm/boot/dts/msm8226-coresight.dtsi
@@ -213,7 +213,7 @@
 		coresight-name = "coresight-csr";
 		coresight-nr-inports = <0>;
 
-		qcom,blk-size = <3>;
+		qcom,blk-size = <1>;
 	};
 
 	cti0: cti@fc308000 {