feat(uhyve): use v2 interface, MmioWrite exits on x86_64

[n0toose]

Companion PR to hermit-os/uhyve#1145

[n0toose]

Small status update: This can't work as-is yet, because we use GuestVirtAddr for the write and read implementations inside src/fd/stdio.rs and src/fs/uhyve.rs, whereas uhyve-interface v2 should now use GuestPhysAddr instead.

[fogti]

Suggested change

	uhyve-interface = { git = "https://github.com/n0toose/uhyve", branch = 'uhyve_if_v2-mmiowrite' }
	uhyve-interface = { git = "https://github.com/n0toose/uhyve", branch = "uhyve_if_v2-mmiowrite" }

[n0toose]

Will be removed, this was added to 'declare' what branch must be used and allow for easier compilation (in theory...)

[n0toose]

The issue causing the CI to fail was technically fixed in https://github.com/hermit-os/kernel/pull/2066/files, but we don't expect a new release for v1 of uhyve-interface (in which https://github.com/hermit-os/kernel/pull/2066/files would've helped.)

We can work around this by using @fogti's work that effectively shifts this responsibility onto hermit-entry:

• deps: get rid of uhyve-interface dependency hermit-entry#64
• refactor: use uhyve version define macro from hermit_entry #2066

Alternatively, we can use [patch.crates-io] and force the kernel to use the latest commit for Uhyve.

CC: @jounathaen, @mkroening