ARM: at91/dt: sama5d2 Xplained: add pdmic node

Add pdmic node on sama5d2-xplained board.The pdmic
pins conflict with ISC_D0 & ISC_D1 data pins.

Signed-off-by: Songjun Wu <songjun.wu@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

arch/arm/boot/dts/at91-sama5d2_xplained.dts

@@ -119,6 +119,16 @@
 				status = "okay";
 			};
 
+			pdmic@f8018000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_pdmic_default>;
+				atmel,model = "PDMIC @ sama5d2_xplained";
+				atmel,mic-min-freq = <1000000>;
+				atmel,mic-max-freq = <3246000>;
+				atmel,mic-offset = <0x0>;
+				status = "okay";
+			};
+
 			uart1: serial@f8020000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_uart1_default>;
@@ -289,6 +299,12 @@
 					bias-disable;
 				};
 
+				pinctrl_pdmic_default: pdmic_default {
+					pinmux = <PIN_PB26__PDMIC_DAT>,
+						<PIN_PB27__PDMIC_CLK>;
+					bias-disable;
+				};
+
 				pinctrl_sdmmc0_default: sdmmc0_default {
 					cmd_data {
 						pinmux = <PIN_PA1__SDMMC0_CMD>,