Bluetooth: Controller: nordic: Rework hw resources files

Move all defines that specifies (D)PPI resources which are used
to dedicated files which have no include dependencies. This allow
to use them in nrfx_glue.h to specify fixed (D)PPI channels used
by the bluetooth.

Additionally, added mask with GPIOTE channels used by the bluetooth
controller. It was previously not defined which could lead to
conflicts since same channels could be allocated by the nrfx_gpiote
user

Updated nrfx_glue.h to use new approach.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>