board/visionfive2: fix genimage.cfg path

Set correct directory for the BR2_ROOTFS_POST_SCRIPT_ARGS.

Signed-off-by: Lukasz Tekieli <tekieli.lukasz@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 9d4874819948a654510bea71a7d5e3db7ff10bee)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

configs/visionfive2_defconfig

@@ -3,7 +3,7 @@ BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_15=y
 BR2_SYSTEM_DHCP="eth0"
 BR2_ROOTFS_OVERLAY="board/visionfive2/overlay"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
-BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/visionfive/genimage.cfg"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/visionfive2/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,starfive-tech,linux,7b7b4eddd8d5ae55f6e0ee09b93e16e23ab4f97b)/linux-7b7b4eddd8d5ae55f6e0ee09b93e16e23ab4f97b.tar.gz"