modules: hal_nordic: Improve reservation of resources for BT_CTLR

Instead of including from nrfx_glue.h a specific Zephyr Bluetooth
controller header file that defines PPI and GPIOTE resources to be
reserved for exclusive use by the controller, include a file with
only a fixed name and expect the chosen Bluetooth controller to
provide the location of this file in include paths. This way, when
a different Bluetooth controller implementation is used downstream,
a different file can be easily pointed to.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/nrfx_glue/bt_ctlr_used_resources.h

@@ -3,12 +3,12 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
-#include "radio_nrf5_fem.h"
+#include "../radio/radio_nrf5_fem.h"
 
 #ifdef DPPI_PRESENT
-#include "radio_nrf5_dppi_resources.h"
+#include "../radio/radio_nrf5_dppi_resources.h"
 #else
-#include "radio_nrf5_ppi_resources.h"
+#include "../radio/radio_nrf5_ppi_resources.h"
 #endif
 
 #if defined(HAL_RADIO_GPIO_HAVE_PA_PIN) || \

subsys/bluetooth/controller/ll_sw/nrf.cmake

@@ -100,3 +100,9 @@ zephyr_library_include_directories(
   ll_sw/nordic
   hci/nordic
 )
+
+# This path needs to be added globally as it is supposed to be used
+# in nrfx_glue.h when other libraries are built.
+zephyr_include_directories(
+  ll_sw/nordic/hal/nrf5/nrfx_glue
+)