qcacmn: Make dp_htt_h2t_send_complete() static

Since dp_htt_h2t_send_complete() is only accessed from within
dp_htt.c, and since there is not a public prototype, make it static.

Change-Id: I002ac20d0e5ced8ddc9d5099a987a5ce208b4cfc
CRs-Fixed: 1108111
1 file changed