ble: sample: Increase stack size for DTM for nRF54H CPURAD

-Ended up with defaults likely to low

Signed-off-by: Frank Audun Kvamtrø <[email protected]>

Author: frkv

samples/bluetooth/direct_test_mode/boards/nrf54h20dk_nrf54h20_cpurad.conf

@@ -12,3 +12,6 @@ CONFIG_NRFX_TIMER2=n
 # Use necessary peripherals
 CONFIG_NRFX_TIMER020=y
 CONFIG_NRFX_TIMER021=y
+
+CONFIG_MAIN_STACK_SIZE=2048
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048