GitLab

* fix: HWCDC pin number

Fixes HW Serial pin setup.

The pins were set up to the wrong value and it could not be correctly configured and used.

* fix: PHY initialization

Fixes the PHY initialization.

After detaching the pin and ending the HW Serial, a new begin() wouldn't start the CDC because it lacked the proper PHY initialization.

* fix: crashing end()

Fixes a crash when calling end()

end() treminanates the `tx_ring_buf` but it was not tested for NULL in the ISR and in the cdc0_write_char() causing a crash if those are used. This depends on events and happens eventually.

* reduces number of debug messages

* fix git stash/commit added lines

* fixes usb_phy_ll include and call

* roll back

* solves HWSerial initialization

* fixes C6|H2 issue

issue with `if(Serial)` not working always

* github commit problem

* fixes