arm64: dts: renesas: rzg2lc-smarc: Enable Audio

Enable Audio on RZ/G2LC SMARC EVK by deleting ssi0 entries from
board DT and adding pincontrol entries to the soc-pinctrl dtsi,
so that entries from common dtsi kick in and make audio functionality
operational.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220303164155.7706-5-biju.das.jz@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts

@@ -19,9 +19,3 @@ &spi1 {
 	/delete-property/ pinctrl-names;
 	status = "disabled";
 };
-
-&ssi0 {
-	/delete-property/ pinctrl-0;
-	/delete-property/ pinctrl-names;
-	status = "disabled";
-};

arch/arm64/boot/dts/renesas/rzg2lc-smarc-pinfunction.dtsi

@@ -106,6 +106,13 @@ sound_clk_pins: sound_clk {
 		input-enable;
 	};
 
+	ssi0_pins: ssi0 {
+		pinmux = <RZG2L_PORT_PINMUX(45, 0, 1)>, /* BCK */
+			 <RZG2L_PORT_PINMUX(45, 1, 1)>, /* RCK */
+			 <RZG2L_PORT_PINMUX(45, 2, 1)>, /* TXD */
+			 <RZG2L_PORT_PINMUX(45, 3, 1)>; /* RXD */
+	};
+
 	usb0_pins: usb0 {
 		pinmux = <RZG2L_PORT_PINMUX(4, 0, 1)>, /* VBUS */
 			 <RZG2L_PORT_PINMUX(5, 0, 1)>, /* OVC */