rpi-bootfiles: Rename recipe to avoid ambiguity

The name `bootfiles` is too generic, we should use `rpi-bootfiles`
instead.

Signed-off-by: Paul Barker <pbarker@konsulko.com>

classes/sdcard_image-rpi.bbclass

@@ -25,9 +25,6 @@ inherit image_types
 # This image depends on the rootfs image
 IMAGE_TYPEDEP_rpi-sdimg = "${SDIMG_ROOTFS_TYPE}"
 
-# Set kernel and boot loader
-IMAGE_BOOTLOADER ?= "bootfiles"
-
 # Kernel image name
 SDIMG_KERNELIMAGE_raspberrypi  ?= "kernel.img"
 SDIMG_KERNELIMAGE_raspberrypi2 ?= "kernel7.img"
@@ -56,7 +53,7 @@ do_image_rpi_sdimg[depends] = " \
     mtools-native:do_populate_sysroot \
     dosfstools-native:do_populate_sysroot \
     virtual/kernel:do_deploy \
-    ${IMAGE_BOOTLOADER}:do_deploy \
+    rpi-bootfiles:do_deploy \
     ${@bb.utils.contains('MACHINE_FEATURES', 'armstub', 'armstubs:do_deploy', '' ,d)} \
     ${@bb.utils.contains('RPI_USE_U_BOOT', '1', 'u-boot:do_deploy', '',d)} \
     ${@bb.utils.contains('RPI_USE_U_BOOT', '1', 'u-boot-default-script:do_deploy', '',d)} \

conf/machine/include/rpi-base.inc

@@ -123,7 +123,7 @@ IMAGE_BOOT_FILES ?= "${BOOTFILES_DIR_NAME}/* \
                     '${KERNEL_IMAGETYPE};${SDIMG_KERNELIMAGE}', d)} \
                  "
 do_image_wic[depends] += " \
-    bootfiles:do_deploy \
+    rpi-bootfiles:do_deploy \
     ${@bb.utils.contains('RPI_USE_U_BOOT', '1', 'u-boot:do_deploy', '',d)} \
     "