configs/versal_vck190_defconfig: set BR2_cortex_a72

The versal vc1902 on the vck190 evaluation board has an ARM Cortex A72 core.

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>

configs/versal_vck190_defconfig

@@ -1,4 +1,5 @@
 BR2_aarch64=y
+BR2_cortex_a72=y
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_15=y
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/versal/post-build.sh"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="board/versal/post-image.sh"