vboot/ui: Split disabled_item_mask into two masks for log screen

Add three macros in 2api.h for bitmask operations:
- VB2_SET_BIT(mask, index)
- VB2_CLR_BIT(mask, index)
- VB2_GET_BIT(mask, index)
These macros will be used in corresponding depthcharge CLs.

Split disabled_item_mask into:
- disabled_item_mask: Disabled style, but still visible and selectable.
- hidden_item_mask: Not visible.

Ignore selecting on disabled menu items.

Set appropriate disabled_item_mask for page up/down buttons in log

Revise tests of hidden_item_mask and add unit tests of disabled_item_mask.

BUG=b:163301076, b:146399181
     make clean && make runtests
TEST=CC=x86_64-pc-linux-gnu-clang; DETACHABLE=1;
     make clean && make runtests
TEST=CC=x86_64-pc-linux-gnu-clang; PHYSICAL_PRESENCE_KEYBOARD=1;
     make clean && make runtests
TEST=CC=x86_64-pc-linux-gnu-clang; DIAGNOSTIC_UI=1;
     make clean && make runtests
TEST=Build locally, navigate to debug info screen with <TAB>,
     select page up or page down, and observe that nothing happens.

Cq-Depend: chromium:2432168
Signed-off-by: Hsuan Ting Chen <roccochen@chromium.org>
Change-Id: I1607af53f6e2b5c1cde568cb24606314051d2380
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2426154
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
Commit-Queue: Yu-Ping Wu <yupingso@chromium.org>
7 files changed