Log Message:
emulators/open-simh: update to 2024 09 04.

Notable changes:

    AltairZ80: Adds "rom" option to "load -h"
    sigma: Update latest from Bob Supnik's v3.12-5
    PDP11: RP11: Implement original RP11 controller flavor
    VAX: Mask QBus addresses to 22 bits for ka630/ka65x
    Mask adapter channel from buffer address for QBus accesses
    Mask QBus addresses to 22 bits
    AltairZ80: Adds CUTER PROM to SOL20 device
    AltairZ80: Fix 8080 and Z80 CPU
    PDP11: Fix to fix disassembly #331