Change in coreboot[master]: soc/mediatek: Add early_init for passing data across stages

[Paul Menzel (Code Review)]

Attention is currently required from: Jianjun Wang.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63019 )

Change subject: soc/mediatek: Add early_init for passing data across stages
......................................................................

Patch Set 12:

(1 comment)

File src/soc/mediatek/common/early_init.c:

https://review.coreboot.org/c/coreboot/+/63019/comment/e727b2e6_1679c12c 
PS12, Line 34: uint64_t
The signature of mono_time_diff_microseconds is long. Why not use the same?