video: driver: Update metadata port settings

- Set correct metadata buffer sizes/counts in initialization.
- Update metadata buffer sizes/count when a metadata control is set.

Change-Id: Ib695b267efac26caa5858cdcdec1868d85182b90
Signed-off-by: Mihir Ganu <mganu@codeaurora.org>

driver/vidc/inc/msm_vidc_driver.h

@@ -297,5 +297,6 @@ bool core_lock_check(struct msm_vidc_core *core, const char *function);
 void inst_lock(struct msm_vidc_inst *inst, const char *function);
 void inst_unlock(struct msm_vidc_inst *inst, const char *function);
 bool inst_lock_check(struct msm_vidc_inst *inst, const char *function);
+int msm_vidc_update_meta_port_settings(struct msm_vidc_inst *inst);
 #endif // _MSM_VIDC_DRIVER_H_