[M] Change in coreboot[master]: mb/intel/mtlrvp: Add bootblock and early gpio for MTL-RVP

[Subrata Banik (Code Review)]

Attention is currently required from: Ashish Kumar Mishra, Harsha B R, Haribalaraman Ramasubramanian, Rizwan Qureshi, Krishna P Bhat D, Balaji Manigandan, Ronak Kanabar, Usha P.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/69886 )

Change subject: mb/intel/mtlrvp: Add bootblock and early gpio for MTL-RVP
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Patch Set 7:

(1 comment)

File src/mainboard/intel/mtlrvp/bootblock.c:

https://review.coreboot.org/c/coreboot/+/69886/comment/02371f1d_c08ad117 
PS7, Line 8: variant_configure_early_gpio_pads
wondering what would be the variant for RVP? is this meaningful even ?