Bump external/umac to v0.21

The new umac work brings in disc RW support, OS 7, memory size control, etc.

These hooks will be used for SD card storage, and to support "odd" memory
sizes, e.g. making a Mac 208K.
This commit is contained in:
Matt Evans 2024-08-18 17:56:23 +01:00
parent 2f65dae641
commit bc633edc1d

2
external/umac vendored

@ -1 +1 @@
Subproject commit 563626a38273656ff08d13a4799fa5d1028b215d
Subproject commit 5d23667c8ef4534a5307fcf6c39c172484e50e30