arm64: dts: ti: Makefile: Add HDMI audio check for AM62A7-SK

HDMI audio can be enabled over AM62A-SK using the same DT overlay that
is used for AM625 / AM62-LP SK-EVMs.

Add the sk.dtb + hdmi-audio.dtbo combination for AM62A7-SK as well, to
check for overlay applicability during DTBS compile tests.
Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Link: https://lore.kernel.org/r/20240201125452.1920623-4-a-bhatia1@ti.comSigned-off-by: Vignesh Raghavendra <vigneshr@ti.com>

arch/arm64/boot/dts/ti/Makefile

@@ -101,6 +101,7 @@ k3-am62a7-sk-csi2-ov5640-dtbs := k3-am62a7-sk.dtb \
 	k3-am62x-sk-csi2-ov5640.dtbo
 k3-am62a7-sk-csi2-tevi-ov5640-dtbs := k3-am62a7-sk.dtb \
 	k3-am62x-sk-csi2-tevi-ov5640.dtbo
+k3-am62a7-sk-hdmi-audio-dtbs := k3-am62a7-sk.dtb k3-am62x-sk-hdmi-audio.dtbo
 k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
 	k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
 k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \
@@ -118,6 +119,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am62-lp-sk-hdmi-audio.dtb \
 	k3-am62a7-sk-csi2-imx219.dtb \
 	k3-am62a7-sk-csi2-ov5640.dtb \
+	k3-am62a7-sk-hdmi-audio.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \
 	k3-j721e-evm-pcie0-ep.dtb \