zephyr: enable progressive erase on all nRF boards

Enables BOOT_ERASE_PROGRESSIVELY for Nordic nRF boards.

This fixes issue where mcumgr upload command would result in
device being deleted, but no new image being uploaded
due to timeout while waiting for erase operation.

This avoids a delay of several seconds during firmware upload.

Signed-off-by: Bernt Johan Damslora <[email protected]>
Signed-off-by: Emil Obalski <[email protected]>
Signed-off-by: Andrzej Puzdrowski <[email protected]>
Signed-off-by: Håkon Øye Amundsen <[email protected]>
Signed-off-by: Martí Bolívar <[email protected]>

Author: bjda

boot/zephyr/Kconfig

@@ -276,7 +276,7 @@ config BOOT_MAX_IMG_SECTORS
 
 config BOOT_ERASE_PROGRESSIVELY
 	bool "Erase flash progressively when receiving new firmware"
-	default y if SOC_NRF52840
+	default y if SOC_FAMILY_NRF
 	help
 	 If enabled, flash is erased as necessary when receiving new firmware,
 	 instead of erasing the whole image slot at once. This is necessary