arm64: dts: qcom: sc7180: Add tertiary mi2s pinctrl

Some devices use tertiary mi2s to connect external audio codec.
Add it near the other two i2s pinctrl definitions so the devices don't
have to duplicate it.
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230907-sc7180-adsp-rproc-v3-3-6515c3fbe0a3@trvn.ruSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sc7180.dtsi

@@ -2044,6 +2044,11 @@ pri_mi2s_mclk_active: pri-mi2s-mclk-active-state {
 				pins = "gpio57";
 				function = "lpass_ext";
 			};
+
+			ter_mi2s_active: ter-mi2s-active-state {
+				pins = "gpio63", "gpio64", "gpio65", "gpio66";
+				function = "mi2s_2";
+			};
 		};
 
 		remoteproc_mpss: remoteproc@4080000 {