cifs: display cache= option in /proc/mounts
cifs: display cache= option in /proc/mounts

...and deprecate the display of strictcache, forcedirectio, and fsc
as separate options.

Reviewed-by: Pavel Shilovsky <7cbcbfe495bad5f7f26ddc6bf28ecd9f36b2e347@etersoft.ru>
Signed-off-by: Jeff Layton <4376fbf8623cd7b7c0232225289bb91cedc0a27f@redhat.com>

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