dts: msm8226: msm8926-v2-720p-mtp: fix dtb name for Sony Xperia M2

In mainline Linux it is a common practice for Sony devices to be named
after their platform name along with their device codename. Change
`lk2nd,dtb-names` property to reflect this so lk2nd can pick the right
dtb for our device.

Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>

Author: erikas9987

lk2nd/device/dts/msm8226/msm8926-v2-720p-mtp.dts

@@ -47,7 +47,7 @@
 		compatible = "sony,eagle";
 		lk2nd,match-bootloader = "s1*";
 
-		// FIXME: lk2nd,dtb-files = "msm8926-sony-eagle";
+		lk2nd,dtb-files = "msm8926-sony-xperia-yukon-eagle";
 
 		gpio-keys {
 			compatible = "gpio-keys";