video: driver: enable buffer pool for mostly used structures

Enabled recycling for below structure types.

- struct msm_vidc_buffer
- struct msm_vidc_alloc
- struct msm_vidc_map.

Change-Id: I062abef85db24385745119b821f87e5b72a4e835
Signed-off-by: Govindaraj Rajagopal <grajagop@codeaurora.org>

driver/vidc/inc/msm_vidc_memory.h

@@ -17,8 +17,6 @@ int msm_vidc_memory_map(struct msm_vidc_core *core,
 	struct msm_vidc_map *map);
 int msm_vidc_memory_unmap(struct msm_vidc_core *core,
 	struct msm_vidc_map *map);
-int msm_vidc_memory_unmap_completely(struct msm_vidc_core *core,
-	struct msm_vidc_map *map);
 struct dma_buf *msm_vidc_memory_get_dmabuf(int fd);
 void msm_vidc_memory_put_dmabuf(void *dmabuf);