configs: andes: add vender prefix for target name

Modify "CONFIG_TARGET_AE350" to "CONFIG_TARGET_ANDES_AE350"

Signed-off-by: Randolph <randolph@andestech.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ae350_rv64_defconfig b/configs/ae350_rv64_defconfig
index 02d8c07..a4b9ad6 100644
--- a/configs/ae350_rv64_defconfig
+++ b/configs/ae350_rv64_defconfig
@@ -7,7 +7,7 @@
 CONFIG_ENV_SECT_SIZE=0x1000
 CONFIG_DEFAULT_DEVICE_TREE="ae350_64"
 CONFIG_SYS_LOAD_ADDR=0x100000
-CONFIG_TARGET_AE350=y
+CONFIG_TARGET_ANDES_AE350=y
 CONFIG_ARCH_RV64I=y
 CONFIG_SYS_MONITOR_BASE=0x88000000
 CONFIG_FIT=y