ARM: dts: ux500: Fix LCDA clock line muxing

The "lcdaclk_b_1" group is muxed with the function "lcd"
but needs a separate entry to be muxed in with "lcda"
rather than "lcd".
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/ste-href-family-pinctrl.dtsi

@@ -607,16 +607,20 @@ sleep_cfg3 {
 
 			mcde {
 				lcd_default_mode: lcd_default {
-					default_mux {
+					default_mux1 {
 						/* Mux in VSI0 and all the data lines */
 						function = "lcd";
 						groups =
 						"lcdvsi0_a_1", /* VSI0 for LCD */
 						"lcd_d0_d7_a_1", /* Data lines */
 						"lcd_d8_d11_a_1", /* TV-out */
-						"lcdaclk_b_1", /* Clock line for TV-out */
 						"lcdvsi1_a_1"; /* VSI1 for HDMI */
 					};
+					default_mux2 {
+						function = "lcda";
+						groups =
+						"lcdaclk_b_1"; /* Clock line for TV-out */
+					};
 					default_cfg1 {
 						pins =
 						"GPIO68_E1", /* VSI0 */