staging/lustre/lnet: Fix static initialization error in router_proc.c

Fixed the static initialization error generated by checkpatch.pl to
meet kernel coding standards.
Signed-off-by: NLisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lnet/lnet/router_proc.c

@@ -30,7 +30,7 @@
 /* This is really lnet_proc.c. You might need to update sanity test 215
  * if any file format is changed. */
 
-static ctl_table_header_t *lnet_table_header = NULL;
+static ctl_table_header_t *lnet_table_header;
 
 #define CTL_LNET	 (0x100)
 enum {