bootutil: extracted app common library from bootutil_misc

Part of code of boot/bootutil/ is re-implemented in zephyr-rtos
repository.
As some code are defined here and there it becomes problem when
need to include it with outstanding feature in a build.
It is possible to mitigate problem using #fdefry - but this was
rather temporary hack.

This patch introduce new module which is common for MCUBoot build
and application build.
Common code were extracted to bootutil_public.c source file and
bootutil_public.h header

MCUboot also select DISABLE_MCUBOOT_BOOTUTIL_LIB_OWN_LOG Kconfig
option, as it must define log configuration on its own for all its
sourcecode.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
diff --git a/boot/zephyr/CMakeLists.txt b/boot/zephyr/CMakeLists.txt
index 1b6024d..49b0fa0 100644
--- a/boot/zephyr/CMakeLists.txt
+++ b/boot/zephyr/CMakeLists.txt
@@ -113,6 +113,9 @@
   ${BOOT_DIR}/bootutil/src/fault_injection_hardening.c
   )
 
+# library which might be common source code for MCUBoot and an application
+zephyr_link_libraries(MCUBOOT_BOOTUTIL)
+
 if(CONFIG_BOOT_FIH_PROFILE_HIGH)
 zephyr_library_sources(
   ${BOOT_DIR}/bootutil/src/fault_injection_hardening_delay_rng_mbedtls.c
diff --git a/boot/zephyr/Kconfig b/boot/zephyr/Kconfig
index 0d0bed3..ef3e834 100644
--- a/boot/zephyr/Kconfig
+++ b/boot/zephyr/Kconfig
@@ -14,6 +14,7 @@
 	bool
 	select MPU_ALLOW_FLASH_WRITE if ARM_MPU
 	select USE_DT_CODE_PARTITION if HAS_FLASH_LOAD_OFFSET
+	select MCUBOOT_BOOTUTIL_LIB
 
 config BOOT_USE_MBEDTLS
 	bool
@@ -573,4 +574,9 @@
 config USB_DEVICE_PRODUCT
 	default "MCUBOOT"
 
+# use MCUboot's own log configuration
+config MCUBOOT_BOOTUTIL_LIB_OWN_LOG
+	bool
+	default n
+
 source "Kconfig.zephyr"
diff --git a/boot/zephyr/include/mcuboot_config/mcuboot_config.h b/boot/zephyr/include/mcuboot_config/mcuboot_config.h
index 4f852be..8f2b157 100644
--- a/boot/zephyr/include/mcuboot_config/mcuboot_config.h
+++ b/boot/zephyr/include/mcuboot_config/mcuboot_config.h
@@ -154,8 +154,14 @@
  */
 #define MCUBOOT_USE_FLASH_AREA_GET_SECTORS
 
+#ifdef CONFIG_BOOT_MAX_IMG_SECTORS
+
 #define MCUBOOT_MAX_IMG_SECTORS       CONFIG_BOOT_MAX_IMG_SECTORS
 
+#else
+#define MCUBOOT_MAX_IMG_SECTORS       128
+#endif
+
 #endif /* !__BOOTSIM__ */
 
 #if CONFIG_BOOT_WATCHDOG_FEED
diff --git a/boot/zephyr/include/mcuboot_config/mcuboot_logging.h b/boot/zephyr/include/mcuboot_config/mcuboot_logging.h
index fa43a80..6f24868 100644
--- a/boot/zephyr/include/mcuboot_config/mcuboot_logging.h
+++ b/boot/zephyr/include/mcuboot_config/mcuboot_logging.h
@@ -13,9 +13,13 @@
  * When building for targets running Zephyr, delegate to its native
  * logging subsystem.
  */
-
+#ifdef CONFIG_MCUBOOT
 #define MCUBOOT_LOG_MODULE_DECLARE(domain)	LOG_MODULE_DECLARE(domain, CONFIG_MCUBOOT_LOG_LEVEL)
 #define MCUBOOT_LOG_MODULE_REGISTER(domain)	LOG_MODULE_REGISTER(domain, CONFIG_MCUBOOT_LOG_LEVEL)
+#else
+#define MCUBOOT_LOG_MODULE_DECLARE(domain)	LOG_MODULE_DECLARE(domain, CONFIG_MCUBOOT_UTIL_LOG_LEVEL)
+#define MCUBOOT_LOG_MODULE_REGISTER(domain)	LOG_MODULE_REGISTER(domain, CONFIG_MCUBOOT_UTIL_LOG_LEVEL)
+#endif
 
 #define MCUBOOT_LOG_ERR(...) LOG_ERR(__VA_ARGS__)
 #define MCUBOOT_LOG_WRN(...) LOG_WRN(__VA_ARGS__)