video: driver: increase encoder max host buffer count

Increase encoder max host bufcount 64 -> 256 to support
superframe(encoder batching) usecase.

Change-Id: I8607b8302a10c52ac47a0c67ee7c359c62aa1d02
Signed-off-by: Govindaraj Rajagopal <grajagop@codeaurora.org>

driver/vidc/inc/msm_vidc_internal.h

@@ -45,6 +45,7 @@
 #define H265_BITSTREM_ALIGNMENT     32
 #define DEFAULT_MAX_HOST_ENC_BUF_COUNT  64
 #define DEFAULT_MAX_HOST_DEC_BUF_COUNT  64
+#define DEFAULT_MAX_HOST_ENC_SUPER_BUF_COUNT 256
 #define BIT_DEPTH_8 (8 << 16 | 8)
 #define BIT_DEPTH_10 (10 << 16 | 10)
 #define CODED_FRAMES_MBS_ONLY HFI_BITMASK_FRAME_MBS_ONLY_FLAG