zephyr:boards nrf52840_pca10059 rename to nrf52840dongle_nrf52840

Board was renamed here:
zephyrproject-rtos/zephyr#24049

Patch aligns the name in MCUBoot.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
diff --git a/boot/zephyr/boards/nrf52840_pca10059.conf b/boot/zephyr/boards/nrf52840dongle_nrf52840.conf
similarity index 100%
rename from boot/zephyr/boards/nrf52840_pca10059.conf
rename to boot/zephyr/boards/nrf52840dongle_nrf52840.conf
diff --git a/boot/zephyr/sample.yaml b/boot/zephyr/sample.yaml
index 548b30b..b645620 100644
--- a/boot/zephyr/sample.yaml
+++ b/boot/zephyr/sample.yaml
@@ -12,7 +12,7 @@
     tags: bootloader_mcuboot
   sample.bootloader.mcuboot.usb_cdc_acm_recovery:
     tags: bootloader_mcuboot
-    platform_whitelist:  nrf52840_pca10059
+    platform_whitelist:  nrf52840dongle_nrf52840
   sample.bootloader.mcuboot.usb_cdc_acm_recovery_log:
     extra_args: OVERLAY_CONFIG=./usb_cdc_acm_log_recovery.conf
       DTC_OVERLAY=./boards/nrf52840_big.overlay