nfs-utils: Add "mountpoint detection" patch

Add patch:

nfs-utils: Fix typo in mountpoint detection

Fix typo in check_is_mountpoint which may be relevant to detect bind
mounts.

nfs-utils.be0

@@ -15,7 +15,7 @@ SRCURL[0]="https://sourceforge.net/projects/nfs/files/nfs-utils/${PKGVERSION}/nf
 ## Add URLs/pathes to patch files to the PATCHURL array.
 ## The sources will be patched in the order of the array.
 
-# PATCHURL+=()
+PATCHURL+=(/src/mariux/patches/0001-nfs-utils-Fix-typo-in-mountpoint-detection.patch)
 
 ###############################################################################
 ## Uncomment the next statement, if the software may not be able to be built