Right side only braille cells (dots ⊆ 4568) incorrect in Noto except Symbols 2, on mobile only

@nathan-williams As best I can tell, all Noto fonts, except for Noto Symbols 2 (which gets it right), incorrectly display braille cells with only right side dots (4 5 6 8) as if they were left shifted (to 1 2 3 7), at least on Android.

See previously #325 reported by @sshbio and responded to by @davelab6.

Here's a full test set. The left one of each pair should be left aligned, the right one right aligned. I've included pipes and 12374568 full cells to help see the alignment.

|⣿|⣿|1237+4568
|⠁|⠈|1 |4
|⠂|⠐| 2 | 5
|⠃|⠘|12 |45
|⠄|⠠| 3 | 6
|⠅|⠨|1 3 |4 6
|⠆|⠰| 23 | 56
|⠇|⠸|123 |456
|⡀|⢀| 7| 8
|⡁|⢈|1 7|4 8
|⡂|⢐| 2 7| 5 8
|⡃|⢘|12 7|45 8
|⡄|⢠| 37| 68
|⡅|⢨|1 37|4 68
|⡆|⢰| 237| 568
|⡇|⢸|1237|5678
|⣿|⣿|1237+4568

Here are screencaps for Noto Symbols 2, Noto Sans, Noto Sans Display, and Noto Serif Display. This is as rendered by UnicodePad on a Samsung Galaxy S9 running Android 10 and One UI 2.5, using TTFs downloaded today from fonts.google.com.

Noto Sans Symbols 2 (regular) *(the only correct one)*:

Noto Sans (regular, Android):

Noto Serif Display (variable, Android):

Noto Sans Display (variable, Android):