[M] Change in flashrom[master]: writeprotect: Add function to get register values and WP bit masks

[Edward O'Callaghan (Code Review)]

Attention is currently required from: Nikolai Artemiev, Anastasia Klimchuk, Sergii Dmytruk.

Edward O'Callaghan has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/69847 )

Change subject: writeprotect: Add function to get register values and WP bit masks
......................................................................

Patch Set 5: Code-Review+2

(2 comments)

File tests/chip_wp.c:

https://review.coreboot.org/c/flashrom/+/69847/comment/159a48cb_1821a4ab 
PS5, Line 363:  strdup(
you do not need a heap allocation, just a `const char *`

https://review.coreboot.org/c/flashrom/+/69847/comment/06a61abb_7b8ff2fe 
PS5, Line 396: free(param_dup);
drop