xfs: don't name variables "panic"
xfs: don't name variables "panic"

The new xfs_alert_tag() used a variable named "panic",
and that is to be avoided.  Rename it.

Signed-off-by: Alex Elder <f556392d917047d964350b9c68912016c96d5e94@sgi.com>
Reviewed-by: Dave Chinner <4d9e23a041ac966f5316a7481300d4ae12e806fe@redhat.com>

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