staging: lustre: ldlm: move LDLM_GID_ANY to lustre_dlm.h

lustre_idl.h only includes wire data; lustre_dlm.h is the
right place for LDLM_GID_ANY.

Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6028
Reviewed-on: http://review.whamcloud.com/13074


Reviewed-by: Bobi Jam <bobijam@gmail.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>