video: driver: add dma mask attribute to context banks

Upstream driver doesn't support context bank address ranges,
so add dma mask attribute to context bank to specify address
range for upstream driver.

Change-Id: I09191b500006d6c7abf364fbfa22377b480a4b4d
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>

driver/platform/common/inc/msm_vidc_platform.h

@@ -74,6 +74,7 @@ struct context_bank_table {
 	bool             secure;
 	bool             dma_coherant;
 	u32              region;
+	u64              dma_mask;
 };
 
 struct freq_table {