[PATCH] libertas: fix two debug statements in cmdresp.c

Purely cosmetic: this moves an lbs_deb_enter() to the proper place
and changes an erraneous lbs_deb_enter_args() into lbs_deb_leave_args()

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>