video: driver: misc video changes

[1] Remove CAP_FLAG_ROOT flag. Root willbe identified
    with has_parents() api.
[2] Replace field(struct msm_vidc_inst_cap) cap -> cap_id.
[3] Rename below pool apis.
    msm_memory_alloc    -> msm_memory_pool_alloc
	msm_memory_free     -> msm_memory_pool_free
[4] Remove struct msm_vidc_inst_cap_entry usage in inst.
	inst->firmware.list -> inst->firmware_list
	inst->children.list -> inst->children_list
[5] Organize msm_vidc_inst_capability_type enums in such
    a way that all parents placed first then children. It
	will save CPU cycles while preparing caps_list.

Change-Id: I376f4e6ddec37ce326c393fba133e19ba70bab09
Signed-off-by: Govindaraj Rajagopal <quic_grajagop@quicinc.com>

driver/vidc/inc/msm_vidc_memory.h

@@ -56,8 +56,8 @@ void msm_vidc_memory_put_dmabuf_completely(struct msm_vidc_inst *inst,
 	struct msm_memory_dmabuf *buf);
 int msm_memory_pools_init(struct msm_vidc_inst *inst);
 void msm_memory_pools_deinit(struct msm_vidc_inst *inst);
-void *msm_memory_alloc(struct msm_vidc_inst *inst,
+void *msm_memory_pool_alloc(struct msm_vidc_inst *inst,
 	enum msm_memory_pool_type type);
-void msm_memory_free(struct msm_vidc_inst *inst, void *vidc_buf);
+void msm_memory_pool_free(struct msm_vidc_inst *inst, void *vidc_buf);
 
 #endif // _MSM_VIDC_MEMORY_H_