[M] Change in flashrom[main]: flashrom_tester: Fix partial_lock_test on libflashrom

[Hsuan-ting Chen (Code Review)]

Attention is currently required from: David Wu, Edward O'Callaghan, Evan Benn, Hsuan Ting Chen.

Hsuan-ting Chen has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/79304?usp=email )

Change subject: flashrom_tester: Fix partial_lock_test on libflashrom
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Patch Set 3:

(2 comments)

File util/flashrom_tester/flashrom/src/flashromlib.rs:

https://review.coreboot.org/c/flashrom/+/79304/comment/51359454_48fb908f :
PS1, Line 200:             .flag_set(FlashromFlag::FlashromFlagSkipUnreadableRegions, true);
> These two are to handle the case of the CSME locking parts of flash. […]

IIUC we have to set all the values in Default? So I set them as false (boolean deafult value, also align with what classic_cli works

File util/flashrom_tester/flashrom/src/flashromlib.rs:

https://review.coreboot.org/c/flashrom/+/79304/comment/57cac227_442f2760 :
PS2, Line 185:     fn set_default_flags(&self) -> () {
             :         self.flashrom
             :             .borrow_mut()
             :             .flag_set(FlashromFlag::FlashromFlagForce, false);
             :         self.flashrom
             :             .borrow_mut()
             :             .flag_set(FlashromFlag::FlashromFlagForceBoardmismatch, false);
             :         self.flashrom
             :             .borrow_mut()
             :             .flag_set(FlashromFlag::FlashromFlagVerifyAfterWrite, true);
             :         self.flashrom
             :             .borrow_mut()
             :             .flag_set(FlashromFlag::FlashromFlagVerifyWholeChip, true);
             :     }
> You probably mean to be using the `Default` trait for the `FlashromFlag` type? Since `enum`'s are un […]

Done

Create another struct FlashromFlags and set its Default function.