17830: periph/timer: fix Kconfig menu title r=aabadie a=gschorcht
### Contribution description
This PR is a very small fix of inconsistent peripheral driver entry in `Kconfig` for `periph/timer`.
In Kconfig menu `(Top) → Drivers → Peripherals drivers` all entries start with the peripheral name in alphabetical order with only one exception, the timer entry. This entry is called `Configure timer peripheral driver`:
```
[ ] CPU unique ID
[ ] EEPROM peripheral driver
[ ] Flashpage peripheral driver ----
[*] GPIO peripheral driver --->
[ ] HWRNG peripheral driver
[ ] PWM peripheral driver
[*] Power Management (PM) peripheral driver
[*] Auto initialize Power Management (PM) peripheral
[ ] Quadrature Decoder (QDEC) peripheral driver
[ ] RTC peripheral driver ----
[ ] SPI peripheral driver ----
[*] UART peripheral driver --->
[*] Configure timer peripheral driver --->
```
This is confusing and doesn't help to find the right entry. This PR
1. changes the entry to `Timer peripheral driver` and
2. corrects the alphabetical order.
### Testing procedure
Use command
```
TEST_KCONFIG=1 make -C tests/periph_timer menuconfig
```
and check the output. in menu `(Top) → Drivers → Peripherals drivers`. It should be with this PR:
```
[ ] CPU unique ID
[ ] EEPROM peripheral driver
[ ] Flashpage peripheral driver ----
[*] GPIO peripheral driver --->
[ ] HWRNG peripheral driver
[ ] PWM peripheral driver
[*] Power Management (PM) peripheral driver
[*] Auto initialize Power Management (PM) peripheral
[ ] Quadrature Decoder (QDEC) peripheral driver
[ ] RTC peripheral driver ----
[ ] SPI peripheral driver ----
[*] Timer peripheral driver --->
[*] UART peripheral driver --->
```
### Issues/PRs references
19635: drivers/mrf24j40: cleanup function r=aabadie a=maribu
### Contribution description
`_set_csma_params()` spends some time to prepare a value in `uint8_t tmp`, which then is never used. Likely this is a leftover of moving code to `mrf24j40_set_csma_max_retries()`. This drops the leftover code.
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
19256: pkg/tinyusb: add GD32VF103 support r=gschorcht a=gschorcht
### Contribution description
This PR provides the tinyUSB support for GD32VF103 and enables the `tinyusb_device` feature as well as `stdio_tinyusb_cdc_acm` for GD32VF103 boards.
### Testing procedure
```
BOARD=sipeeed-longan-nano make -C tests/shell flash term
```
should work
### Issues/PRs references
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
The warnings appeared after the -fno-builtin compiler flag was removed (#17898),
but the code is looking fine and tests/periph_cpuid shows correct results.
Setting up a DMA transfer can take longer than sending out a buffer
byte by byte if the buffer is small.
DMA only shows advantages for large buffers, using it for every transfer
will cause a net slowdown.
Since we did not come up with a good way to determine the treshold based
on the SPI frequency, just use a fixed buffer for now so that DMA can be
used without slowing things down overall.
Some periph_rtt implementations do not provide `rtt_set_counter()`. This
adds `periph_rtt_set_counter` as feature to allow testing for its
availability. The feature is provided at CPU level if periph_rtt is
provided by the board for all CPUs implementing `rtt_set_counter()`.
