Merge branch 'fix-mk-image-checkout' into 'master'

build_uboot: Fix build twice in a row

See merge request Librem5/u-boot-builder!3

build_uboot.sh

@@ -157,7 +157,7 @@ function combine_uboot_bins()
     cd "${CWD}"
 
     if [ "${MKIMAGE_REPO}" != "" ]; then
-	MKIMAGE_DIR=$(echo "${MKIMAGE_REPO}" | awk -F '/' '{ print $NF }')
+	MKIMAGE_DIR=$(basename "${MKIMAGE_REPO}" .git)
         if [ ! -e "${MKIMAGE_DIR}" ]; then
             git clone "${MKIMAGE_REPO}" -b "${MKIMAGE_BRANCH}"
         fi