Change in coreboot[master]: mb/intel/adlrvp: Use dedicated VBT files for ADL-M

[Subrata Banik (Code Review)]

Attention is currently required from: Furquan Shaikh, Maulik V Vaghela, Paul Menzel, Balaji Manigandan, Bernardo Perez Priego, Tim Wawrzynczak.
Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/58202 )

Change subject: mb/intel/adlrvp: Use dedicated VBT files for ADL-M
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Patch Set 3:

(1 comment)

File src/mainboard/intel/adlrvp/mainboard.c:

https://review.coreboot.org/c/coreboot/+/58202/comment/cb9c003d_ef880b9e 
PS3, Line 79: 	case ADL_M_LP5:
            : 		return "vbt_adlrvp_m_lp5.bin";
nit: if you could move this at line 84 to club ADL-M board

Also, in future we can consider adding scalable (as below) structures rather switch cases for multiple level code. This way, we can grow the different SKUs easily.

struct vbt_config {
    uint8_t sku_id;
    char *file_name;
} config[] = {
    { ADL_P_LP5_1, "vbt_adlrvp_lp5.bin" },
    ....
};

uint8_t sku_id = get_board_id();
for (int i = 0; i < ARRAY_SIZE(config); i++)
    if (config[i].sku_id == sku_id)
    	return config[i].file_name;