Cleanup Buildroot package for Raspberry Pi Bluetooth support (#1846)

* Replace bluetooth-bcm43xx with pi-bluetooth Buildroot package

The new pi-bluetooth packages the scripts and systemd service from
the Raspberry distribution package directly:
https://github.com/RPi-Distro/pi-bluetooth

* Update to latest pi-bluetooth service files

* Update busybox configuration to 1.35.0

The new/deleted configurations are generated automatically, no actual
change in this patch.

* Enable busybox xxd command

The xxd tool is useful for conversion in scripts.

* Prevent start erros on Compute Module 4 without WiFi/Bluetooth

buildroot-external/configs/rpi3_64_defconfig

@@ -124,7 +124,7 @@ BR2_PACKAGE_HASSIO_MACHINE="raspberrypi3-64"
 BR2_PACKAGE_APPARMOR=y
 BR2_PACKAGE_APPARMOR_PROFILES=y
 BR2_PACKAGE_LIBCURL_CURL=y
-BR2_PACKAGE_BLUETOOTH_BCM43XX=y
+BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_DOSFSTOOLS=y
 BR2_PACKAGE_DOSFSTOOLS_FSCK_FAT=y
 BR2_PACKAGE_RPI_RF_MOD=y

buildroot-external/configs/rpi3_defconfig

@@ -124,7 +124,7 @@ BR2_PACKAGE_HASSIO_MACHINE="raspberrypi3"
 BR2_PACKAGE_APPARMOR=y
 BR2_PACKAGE_APPARMOR_PROFILES=y
 BR2_PACKAGE_LIBCURL_CURL=y
-BR2_PACKAGE_BLUETOOTH_BCM43XX=y
+BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_DOSFSTOOLS=y
 BR2_PACKAGE_DOSFSTOOLS_FSCK_FAT=y
 BR2_PACKAGE_RPI_RF_MOD=y

buildroot-external/configs/rpi4_64_defconfig

@@ -125,7 +125,7 @@ BR2_PACKAGE_HASSIO_MACHINE="raspberrypi4-64"
 BR2_PACKAGE_APPARMOR=y
 BR2_PACKAGE_APPARMOR_PROFILES=y
 BR2_PACKAGE_LIBCURL_CURL=y
-BR2_PACKAGE_BLUETOOTH_BCM43XX=y
+BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_DOSFSTOOLS=y
 BR2_PACKAGE_DOSFSTOOLS_FSCK_FAT=y
 BR2_PACKAGE_RPI_RF_MOD=y

buildroot-external/configs/rpi4_defconfig

@@ -123,7 +123,7 @@ BR2_PACKAGE_HASSIO_MACHINE="raspberrypi4"
 BR2_PACKAGE_APPARMOR=y
 BR2_PACKAGE_APPARMOR_PROFILES=y
 BR2_PACKAGE_LIBCURL_CURL=y
-BR2_PACKAGE_BLUETOOTH_BCM43XX=y
+BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_DOSFSTOOLS=y
 BR2_PACKAGE_DOSFSTOOLS_FSCK_FAT=y
 BR2_PACKAGE_RPI_RF_MOD=y

buildroot-external/configs/yellow_defconfig

@@ -124,7 +124,7 @@ BR2_PACKAGE_HASSIO_MACHINE="raspberrypi4-64"
 BR2_PACKAGE_APPARMOR=y
 BR2_PACKAGE_APPARMOR_PROFILES=y
 BR2_PACKAGE_LIBCURL_CURL=y
-BR2_PACKAGE_BLUETOOTH_BCM43XX=y
+BR2_PACKAGE_PI_BLUETOOTH=y
 BR2_PACKAGE_DOSFSTOOLS=y
 BR2_PACKAGE_DOSFSTOOLS_FSCK_FAT=y
 BR2_PACKAGE_RPI_RF_MOD=y