Check for (hostFlags & HOSTDELETED) after h_Lock_r

Check for (hostFlags & HOSTDELETED) after h_Lock_r

Many callers of h_Lock_r do not check if the HOSTDELETED flag is set,
even though it could have been set while waiting for the host lock. Add
checks for it everywhere we call h_Lock_r and we care if the host has
been deleted.

FIXES 125507

Reviewed-on: http://gerrit.openafs.org/716
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit cbe580fee176c9e9e083379129c309fd15d0f24c)

Change-Id: I5eacee7a33f7b1357ec13cfcc4e1b7b4538837f6
Reviewed-on: http://gerrit.openafs.org/776
Tested-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@dementia.org>