Verify SDP support
Related epic: https://source.puri.sm/Librem5/use-cases/issues/64
It is important to ensure that SDP is working since it's an important for our "de-brinking" story.
A working SDP means that the following need to be functioning as expected:
- USB
- DRAM
- pinmuxes
- clocks
The end result is being able to upload a binary into DRAM and run it.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information