[coreboot-gerrit] Change in coreboot[master]: cpu/x86/mtrrlib: Use `need restore mtrr()` from set var mtrr function

[Arthur Heymans (Code Review)]

Attention is currently required from: Subrata Banik, Tim Wawrzynczak, Nick Vaccaro, Eric Lai.
Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63492 )

Change subject: cpu/x86/mtrrlib: Use `need_restore_mtrr()` from  set_var_mtrr  function
......................................................................

Patch Set 1:

(1 comment)

File src/cpu/x86/mtrr/mtrrlib.c:

https://review.coreboot.org/c/coreboot/+/63492/comment/56a429e6_d5e568d5 
PS1, Line 52: /* Need to restore mtrr later using remove_temp_solution. */
            : 	if (ENV_RAMSTAGE)
            : 		need_restore_mtrr();
> mostly mtrr_use_temp_range() is added for ramstage along using mtrr.c file. hence, last time I saw some compilation issue and decided to expand `set_var_mtrr` for such simple var mtrr setup.

Let's see what jenkins makes of it.
https://review.coreboot.org/c/coreboot/+/63550 worked fine locally.