vboot/ui: Suffix "_ms" to time-related variables

For test/vb2_ui_tests.c:
- Rename mock_get_timer_last to mock_get_timer_last_ms.
- Rename mock_time to mock_time_ms.
- Rename mock_time_start to mock_time_start_ms.

For 2lib/2ui.c and 2lib/2ui_screen.c:
- Rename start_time to start_time_ms in struct vb2_ui_context.
- Rename elapsed to elapsed_ms in developer_mode_action().

BUG=b:156448738
BRANCH=none
TEST=CC=x86_64-pc-linux-gnu-clang;
     make clean && make runtests

Signed-off-by: Hsuan Ting Chen <roccochen@chromium.org>
Change-Id: Icabe04003f0dc95f41c9ed8b8e2292f1f64e86bc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2513417
3 files changed