NFS: Use the NFS_DEFAULT_VERSION for v2 and v3 mounts
NFS: Use the NFS_DEFAULT_VERSION for v2 and v3 mounts

Older versions of nfs utils don't always pass a "vers=" mount option for
NFS.  This chould lead to attempts at using NFS v0 due to a zeroed out
nfs_parsed_mount_data struct.  I solve this by setting the default NFS
version to NFS_DEFAULT_VERSION in the v2 and v3 cases (v4 has already been
taken care of by a similar patch).

Reported-by: Joerg Roedel <4688a6871ff025801033b3c4b039d55a29f8f937@&bytes.org>
Signed-off-by: Bryan Schumaker <8d60cd65e947920c1efaaf1b4ff723c7aa255e6d@netapp.com>
Signed-off-by: Trond Myklebust <6a1f9db795c9fc44be97d66ab114c53193bd3d13@netapp.com>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas