tests: drivers: Enable new test for MAX32650 boards

This commit enables following tests for MAX32650EVKIT and MAX32650FTHR:
- counter/counter_basic_api
- dma/chan_blen_transfer
- dma/loop_transfer
- i2c/i2c_target_api (only for MAX32650EVKIT)
- spi/spi_loopback

Signed-off-by: Furkan Akkiz <hasanfurkan.akkiz@analog.com>
Signed-off-by: Burak Babaoglu <burak.babaoglu@analog.com>