msm: vidc: Use upstream api to load firmware image

Use upstream compliant APIs to, load and authenticate firmware image.
Downstream api, PIL/SSR, are deprecated.

Change-Id: I121c3c0276cdd84fa18ff8f65df45b3ac00e7443
Signed-off-by: Akshata Sahukar <asahukar@codeaurora.org>
Signed-off-by: Chinmay Sawarkar <chinmays@codeaurora.org>

driver/vidc/inc/msm_vidc_dt.h

@@ -218,7 +218,7 @@ struct msm_vidc_dt {
 	struct list_head context_banks;
 	struct mutex cb_lock;
 	const char *fw_name;
-	void *fw_cookie;
+	int fw_cookie;
 };
 
 int msm_vidc_init_dt(struct platform_device *pdev);