Update LS/AOD clock

- only use one paint for hours and minutes
- customize vertical line spacing for Burmese numerals to account for
long ascenders and descenders

Note: Burmese numerals sometimes get cutoff at the bottom, bug filed at
b/179815528

Test: manual
Fixes: 177206446
Bug: 179781576
Change-Id: Iac71eabdcf1ed06962f38414253a2038651168c7