bluetooth: controller: Made BT_CTLR_RX_PRIO_STACK_SIZE non-hidden

Added prompt to BT_CTLR_RX_PRIO_STACK_SIZE, allowing vendor specific
configuration of high priority Rx thread stack size for
!SOC_COMPATIBLE_NRF.

Signed-off-by: Morten Priess <mtpr@oticon.com>
1 file changed