Change in coreboot[master]: amdfwtool: Allow for the tool to support additional PSP entries

[Paul Menzel (Code Review)]

Attention is currently required from: Bao Zheng, Jason Nien, Al Hirani.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62911 )

Change subject: amdfwtool: Allow for the tool to support additional PSP entries
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Patch Set 2:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/62911/comment/d4793776_3dd899b2 
PS2, Line 8: 
What PSP entries are not supported right now? Please start with a description of the problem.

https://review.coreboot.org/c/coreboot/+/62911/comment/1e5db0e0_c65ede38 
PS2, Line 9: Consolidate the MAX_BIOS_ENTRIES and MAX_PSP_ENTRIES definitions into one file
Please wrap lines after 72 characters, and add a dot/period to the end of sentences.