fix: adding crc32c for ext3

Noticed that ext3 is still being used in the wild so let's add it to the crc32c list
so downstream does not have to carry a patch for it.

Author: johannbg

modules.d/99fs-lib/module-setup.sh

@@ -37,7 +37,7 @@ echo_fs_helper() {
 include_fs_helper_modules() {
     local fs=$2
     case "$fs" in
-        xfs | btrfs | ext4)
+        xfs | btrfs | ext4 | ext3)
             instmods crc32c
             ;;
         f2fs)