x-wic.inc: Fix typo in WIC_ROOTB_PARTITION_EXTRA_ARGS variable name

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

meta-ohos-core/conf/distro/include/x-wic.inc

@@ -17,7 +17,7 @@ SYSDATA_PARTITION_SIZE ?= "512M"
 APPDATA_PARTITION_SIZE ?= "1G"
 
 WIC_ROOTA_PARTITION      ?= "part / --source rootfs --use-uuid --fstype=ext4 --label x-sys-a    --align 4096 --fixed-size ${ROOTA_PARTITION_SIZE}      ${WIC_ROOTA_PARTITION_EXTRA_ARGS}"
-WIC_ROOTB_PARTITION      ?= "part                              --fstype=ext4 --label x-sys-b    --align 4096 --fixed-size ${ROOTB_PARTITION_SIZE}      ${WIC_ROOTb_PARTITION_EXTRA_ARGS}"
+WIC_ROOTB_PARTITION      ?= "part                              --fstype=ext4 --label x-sys-b    --align 4096 --fixed-size ${ROOTB_PARTITION_SIZE}      ${WIC_ROOTB_PARTITION_EXTRA_ARGS}"
 WIC_DEVICEDATA_PARTITION ?= "part                              --fstype=ext4 --label x-dev-data --align 4096 --fixed-size ${DEVICEDATA_PARTITION_SIZE} ${WIC_DEVICEDATA_PARTITION_EXTRA_ARGS}"
 WIC_SYSDATA_PARTITION    ?= "part                              --fstype=ext4 --label x-sys-data --align 4096 --fixed-size ${SYSDATA_PARTITION_SIZE}    ${WIC_SYSDATA_PARTITION_EXTRA_ARGS}"
 WIC_APPDATA_PARTITION    ?= "part                              --fstype=ext4 --label x-app-data --align 4096 --fixed-size ${APPDATA_PARTITION_SIZE}    ${WIC_APPDATA_PARTITION_EXTRA_ARGS}"