Add a field or interface to query the FBC superblock size

[nyanmisaka]

The MPP_FRAME_FMT_IS_AFBC() macro cannot distinguish the superblock size. For example, RK356x and RK3588 use AFBC 16x16, while RK3572 and similar models use AFBC 32x8. And we assume that RKFBC only has one type, 64x4, which is used by RK3576.

mpp/mpp/hal/rkdec/inc/vdpu38x_com.h

Lines 112 to 118 in c2c1ee5

	/*
	* 0:pp output raster.
	* 1:pp output tile4x4.
	* 2:pp output rkfbc64x4.
	* 3:pp output afbc32x8.
	*/
	RK_U32 pp_output_mode : 2;

This requirement arises because RGA requires the FBC superblock size to be explicitly specified during configuration. Without such size info, we have to maintain a SOC->FBC size mapping table to support multiple SOC models, which is inconvenient.

typedef enum {
    IM_RASTER_MODE              = 1 << 0,
    IM_AFBC16x16_MODE           = 1 << 1,
    IM_TILE8x8_MODE             = 1 << 2,
    IM_TILE4x4_MODE             = 1 << 3,
    IM_RKFBC64x4_MODE           = 1 << 4,
    IM_AFBC32x8_MODE            = 1 << 5,
    /* legacy */
    IM_FBC_MODE                 = IM_AFBC16x16_MODE,
    IM_TILE_MODE                = IM_TILE8x8_MODE,
} IM_RD_MODE;