WIP: Deps/embedded hal 1.0.0 alpha.8

[har7an]

Bumps the embedded-hal version to 1.0.0-alpha.8.

Pending on the following dependencies:

• linux-embedded-hal: https://github.com/rust-embedded/linux-embedded-hal/pull/83
• rust-driver-cp2130: https://github.com/rust-iot/rust-driver-cp2130/pull/29

[ryankurte]

thanks for your contribution! updated to e-h@1.0.0 and released in v0.8.0