Update barbet screen decorations

- Tweaked rounded corners to have different top and bottom assets, and
copied them from Bramble
- Adjusted the holepunch based on the pixel mapping
- Adjusted status bar height and top padding
- Configured the estimated display cutout area for a 121px box

Test: visual
Fixes: 171681765
Change-Id: I8d2af94cf4b24e60b04627c7c9e3c66c65a36010
5 files changed