Change in coreboot[master]: soc/intel/common/block/dmi: add a function to check DMI SRL status

[Michael Niewöhner (Code Review)]

Attention is currently required from: Nico Huber, Furquan Shaikh, Tim Wawrzynczak, Subrata Banik, Patrick Rudolph.
Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/49614 )

Change subject: soc/intel/common/block/dmi: add a function to check DMI SRL status
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Patch Set 7:

(1 comment)

File src/soc/intel/common/block/dmi/dmi.c:

https://review.coreboot.org/c/coreboot/+/49614/comment/2a5f923b_8a0f35f4 
PS7, Line 23: 		locked = pcr_read32(PID_DMI, PCR_DMI_DMICTL) & PCR_DMI_DMICTL_SRLOCK;
> This seems backwards; if PDMI, use DMICTL? But the comment for MPC says […]

right, it's the other way round: MPC.SRL for PDMI (PCH-H) and DMICTL.SRL for OPDMI (PCH-LP, PCH-N)