ARM: at91: dts: sama5d3: move the isi mck pin to mb

The mck is decided by the board design, move it to mb related
dtsi file.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/sama5d3.dtsi

@@ -583,11 +583,6 @@ pinctrl_isi_data_10_11: isi-0-data-10-11 {
 							<AT91_PIOC 27 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC27 periph C ISI_PD10, conflicts with SPI1_NPCS2, TWCK1 */
 							 AT91_PIOC 26 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PC26 periph C ISI_PD11, conflicts with SPI1_NPCS1, TWD1 */
 					};
-
-					pinctrl_isi_pck_as_mck: isi_pck_as_mck-0 {
-						atmel,pins =
-							<AT91_PIOD 31 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PD31 periph B ISI_MCK */
-					};
 				};
 
 				mmc0 {

arch/arm/boot/dts/sama5d3xmb.dtsi

@@ -117,6 +117,11 @@ pinctrl_pck0_as_audio_mck: pck0_as_audio_mck {
 							<AT91_PIOD 30 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PD30 periph B */
 					};
 
+					pinctrl_isi_pck_as_mck: isi_pck_as_mck-0 {
+						atmel,pins =
+							<AT91_PIOD 31 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PD31 periph B ISI_MCK */
+					};
+
 					pinctrl_isi_reset: isi_reset-0 {
 						atmel,pins =
 							<AT91_PIOE 24 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;   /* PE24 gpio */