esp32: Remove dependency on esp_tinyusb.

Instead, depend directly on espressif/tinyusb component
(which is otherwise transitively included via esp_tinyusb).

Turns out esp_tinyusb builds a bunch of source files with
symbols that conflict with our tinyusb symbols (i.e.
descriptors_control.c).

This only works because nothing in MicroPython causes the linker to include
the esp_tinyusb.a library, however in order to override the dcd_int_handler
(in following commit) this caused the linker to pull this library in and
break the build.

There's also a problematic header skew - TinyUSB component was building
with the tusb_config.h file from esp_tinyusb component, but we have our own
tusb_config.h file in shared/tinyusb. The changes in parent commit allow
us to build the TinyUSB component with our tusb_config.h header.

User-facing impacts are:

- Can no longer override USB VID & PID via sdkconfig, have to set
  MICROPY_HW_USB_VID/PID instead (changes applied in this commit).

- esp32 boards will have the same USB serial number as other ports
  (i.e. based on the hardware MAC address, not hard-coded).

Side effects include:

- CFG_TUD_DWC2_SLAVE_ENABLE is now set, DMA mode is disabled.

Signed-off-by: Angus Gratton <angus@redyak.com.au>

ports/esp32/lockfiles/dependencies.lock.esp32c6

@@ -16,6 +16,6 @@ dependencies:
 direct_dependencies:
 - espressif/mdns
 - idf
-manifest_hash: 3b18b5bbac91c9fe5098d3759a37c84ed0828546d8cbc92e26e4c1698e689c8a
+manifest_hash: ea629d6996152d77801fb1acae35b27596fdc023a933d40287d80f98dc497b55
 target: esp32c6
 version: 2.0.0