Add support for building an EL2 combined DTB for the talos-evk
in the Qualcomm DTS Makefile.

The new talos-evk-el2.dtb is generated by combining the base
talos-evk.dtb with the talos-el2.dtbo overlay, enabling EL2-specific
configurations required by the platform.

Signed-off-by: Xin Liu <xin.liu@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 4ba8e7306419..c89e4327ef18 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -393,6 +393,10 @@ dtb-$(CONFIG_ARCH_QCOM)	+= sm8650-qrd.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8750-mtp.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8750-qrd.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk.dtb
+
+talos-evk-el2-dtbs	:= talos-evk.dtb talos-el2.dtbo
+
+dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk-el2.dtb
 talos-evk-usb1-peripheral-dtbs := talos-evk.dtb talos-evk-usb1-peripheral.dtbo
 dtb-$(CONFIG_ARCH_QCOM) += talos-evk-usb1-peripheral.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk-camera-imx577.dtbo
-- 
2.43.0