[coreboot] Building Intel SoC Apollo Lake with DDR3L+PMIC

[morris.wang]

Hello,

I am building coreboot image for Apollo Lake.
My designed mainboard comes with DDR3L SODIMMs + PMIC.

To my knowledge, 
RVP1 board is for DDR3L SODIMMs and discrete VRs.
RVP2 board is for LPDDR3 and PMIC.

If I selected under coreboot configuration:
Mainboard --> Mainboard vendor (Intel)
                        Mainboard model  (Apollolake DDR3 RVP1)

How to modify VR type from Discrete to PMIC???

Kind regards,
Morris