configs/zynq_zc702_defconfig: new defconfig

This patch adds support for Xilinx Zynq ZC702 starter kit.

ZC702 features can be found here:
https://www.xilinx.com/products/boards-and-kits/ek-z7-zc702-g.html

Signed-off-by: Neal Frager <neal.frager@amd.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

DEVELOPERS

@@ -2207,6 +2207,7 @@ F:	board/versal/
 F:	board/zynq/
 F:	board/zynqmp/
 F:	configs/versal_vck190_defconfig
+F:	configs/zynq_zc702_defconfig
 F:	configs/zynq_zc706_defconfig
 F:	configs/zynqmp_kria_kv260_defconfig
 F:	configs/zynqmp_zcu102_defconfig

configs/zynq_zc702_defconfig

@@ -0,0 +1,33 @@
+BR2_arm=y
+BR2_cortex_a9=y
+BR2_ARM_ENABLE_NEON=y
+BR2_ARM_ENABLE_VFP=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1=y
+BR2_ROOTFS_POST_BUILD_SCRIPT="board/zynq/post-build.sh"
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/zynq/post-image.sh"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,Xilinx,linux-xlnx,xlnx_rebase_v6.1_LTS_2023.2)/xlnx_rebase_v6.1_LTS_2023.2.tar.gz"
+BR2_LINUX_KERNEL_DEFCONFIG="xilinx_zynq"
+BR2_LINUX_KERNEL_UIMAGE=y
+BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x8000"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="zynq-zc702"
+BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="$(call github,Xilinx,u-boot-xlnx,xlnx_rebase_v2023.01_2023.2)/xlnx_rebase_v2023.01_2023.2.tar.gz"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="xilinx_zynq_virt"
+BR2_TARGET_UBOOT_CUSTOM_MAKEOPTS="DEVICE_TREE=zynq-zc702"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
+BR2_TARGET_UBOOT_NEEDS_GNUTLS=y
+BR2_TARGET_UBOOT_FORMAT_IMG=y
+BR2_TARGET_UBOOT_SPL=y
+BR2_TARGET_UBOOT_SPL_NAME="spl/boot.bin"
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y