pkg(docker-engine): build without btrfs support on CentOS 7

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

Author: crazy-max

pkg/docker-engine/scripts/pkg-rpm-build.sh

@@ -67,7 +67,7 @@ if [ -n "$(xx-info variant)" ]; then
 fi
 
 case "$PKG_RELEASE" in
-  centos8|centos9|oraclelinux*)
+  centos7|centos8|centos9|oraclelinux*)
     rpmDefine+=(--define "_without_btrfs 1")
     export DOCKER_BUILDTAGS="exclude_graphdriver_btrfs $DOCKER_BUILDTAGS"
     ;;