efivarfs: Make efivarfs_fill_super() static
efivarfs: Make efivarfs_fill_super() static

sparse is complaining that efivarfs_fill_super() doesn't have a
prototype. Make it static to avoid the warning.

Cc: Xie ChanglongX <2178167f4406ea0b5659ce13249e3fd52074cef6@intel.com>
Cc: Matthew Garrett <4cf8d479716eba9bc68e0146d95320fcb138b96b@redhat.com>
Cc: Jeremy Kerr <ed2ecf6f990cdec851e11d5bf34a3b771a0783cf@canonical.com>
Signed-off-by: Matt Fleming <b02f0790d66a0f0a6b369873bf6df37420fbe5dd@intel.com>

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