ARM: dts: imx6ul: Fix operating points

Adjust the VDD_ARM_CAP and VDD_SOC_CAP voltages according to
Table-11 from MX6UL datasheet:
http://cache.nxp.com/files/32bit/doc/data_sheet/IMX6ULCEC.pdf

(a 25mV offset is added to the minimum allowed values for safety).
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6ul.dtsi

@@ -55,15 +55,15 @@ cpu0: cpu@0 {
 			clock-latency = <61036>; /* two CLK32 periods */
 			operating-points = <
 				/* kHz	uV */
-				528000	1250000
-				396000	1150000
-				198000	1150000
+				528000	1175000
+				396000	1025000
+				198000	950000
 			>;
 			fsl,soc-operating-points = <
 				/* KHz	uV */
-				528000	1250000
-				396000	1150000
-				198000	1150000
+				528000	1175000
+				396000	1175000
+				198000	1175000
 			>;
 			clocks = <&clks IMX6UL_CLK_ARM>,
 				 <&clks IMX6UL_CLK_PLL2_BUS>,