video: driver: Set lx arch to fw before fw boot

To simplify the boot process, firmware needs to know the type of architecture
before it boots up.

Change-Id: I42ff87094b816f9783d18fa67126e9b7a4dab320
Signed-off-by: Chinmay Sawarkar <chinmays@codeaurora.org>

driver/vidc/inc/hfi_command.h

@@ -92,7 +92,6 @@ enum hfi_buffer_type {
 	HFI_BUFFER_RAW        = 0x00000002,
 	HFI_BUFFER_METADATA   = 0x00000003,
 	HFI_BUFFER_SUBCACHE   = 0x00000004,
-	HFI_BUFFER_SFR        = 0x00000005,
 	HFI_BUFFER_DPB        = 0x00000006,
 	HFI_BUFFER_BIN        = 0x00000007,
 	HFI_BUFFER_LINE       = 0x00000008,