dfu: log: rename level variable

Rename log level variable:
CONFIG_LOG_IMG_MANAGER_LEVEL to CONFIG_IMG_MANAGER_LOG_LEVEL

Use template for log levels.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

subsys/dfu/Kconfig

@@ -38,22 +38,8 @@ config IMG_BLOCK_BUF_SIZE
 	  Size (in Bytes) of buffer for image writer. Must be a multiple of
 	  the access alignment required by used flash driver.
 
-config LOG_IMG_MANAGER_LEVEL
-	int "Image manager Log level"
-	depends on LOG && MCUBOOT_IMG_MANAGER
-	default 0
-	range 0 4
-	help
-	  Sets log level for the image manager.
-	  Levels are:
+module = IMG_MANAGER
+module-str = image manager
+source "subsys/logging/Kconfig.template.log_config"
 
-	  - 0 OFF: do not write
-
-	  - 1 ERROR: only write LOG_ERR
-
-	  - 2 WARNING: write LOG_WRN in addition to previous level
-
-	  - 3 INFO: write LOG_INF in addition to previous levels
-
-	  - 4 DEBUG: write LOG_DBG in addition to previous levels
 endmenu

subsys/dfu/img_util/flash_img.c

@@ -6,9 +6,9 @@
  */
 
 #define LOG_MODULE_NAME fota_flash_block
-#define LOG_LEVEL CONFIG_LOG_IMG_MANAGER_LEVEL
+#define LOG_LEVEL CONFIG_IMG_MANAGER_LOG_LEVEL
 #include <logging/log.h>
-LOG_MODULE_REGISTER();
+LOG_MODULE_REGISTER(LOG_MODULE_NAME);
 
 #include <zephyr/types.h>
 #include <stddef.h>