ARM: dts: Fix CLK_MOUT_CAMn parent clocks assignment for exynos4412-trats2

In order to get exact 24MHz clock frequency value for the camera
sensor and avoid rounding errors the parent clock must be CLK_XUSBXTI,
not CLK_MOUT_MPLL_USER_T.  Currently the sensor's master clock
frequency is too high and the sensor doesn't work properly.

This fixes commit 0357a443
("ARM: dts: Specify default clocks for Exynos4 camera devices").
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

arch/arm/boot/dts/exynos4412-trats2.dts

@@ -746,8 +746,8 @@
 		status = "okay";
 		assigned-clocks = <&clock CLK_MOUT_CAM0>,
 				  <&clock CLK_MOUT_CAM1>;
-		assigned-clock-parents = <&clock CLK_MOUT_MPLL_USER_T>,
-					 <&clock CLK_MOUT_MPLL_USER_T>;
+		assigned-clock-parents = <&clock CLK_XUSBXTI>,
+					 <&clock CLK_XUSBXTI>;
 
 		fimc_0: fimc@11800000 {
 			status = "okay";