Staging: lustre: Place a space after a semi colon.

Removes the following errors generated using checkpatch.pl tool:
drivers/staging/lustre/lustre/ldlm/ldlm_internal.h:247: ERROR: space required after that ';' (ctx:VxV)
drivers/staging/lustre/lustre/ldlm/ldlm_internal.h:269: ERROR: space required after that ';' (ctx:VxV)

Signed-off-by: Surya Seetharaman <suryaseetharaman.9@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>