Modify ota boot config

Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/.defconfig

@@ -29,7 +29,7 @@ CONFIG_LTE_DEVICE_NAME_1="lte_dev1"
 #
 CONFIG_RESOURCES_SERIAL=y
 CONFIG_SERIAL_USING_DMA=y
-CONFIG_SERIAL_RB_BUFSZ=128
+CONFIG_SERIAL_RB_BUFSZ=2048
 
 #
 # Kernel feature
@@ -165,8 +165,8 @@ CONFIG_FS_VFS_DEVFS=y
 # OTA function
 #
 CONFIG_TOOL_USING_OTA=y
-# CONFIG_MCUBOOT_BOOTLOADER is not set
-CONFIG_MCUBOOT_APPLICATION=y
+CONFIG_MCUBOOT_BOOTLOADER=y
+# CONFIG_MCUBOOT_APPLICATION is not set
 CONFIG_OTA_BY_PLATFORM=y
 # CONFIG_OTA_BY_TCPSERVER is not set
 # CONFIG_OTA_BY_NONE is not set
@@ -181,7 +181,7 @@ CONFIG_DOWN_FLAH_ADDRESS=0x08008000
 CONFIG_FLAG_FLAH_ADDRESS=0x08077000
 CONFIG_APP_FLASH_SIZE=0x00100000
 CONFIG_OTA_RX_TIMEOUT=600
-CONFIG_OTA_FRAME_SIZE=2048
+CONFIG_OTA_FRAME_SIZE=1024
 
 #
 # APP_Framework