change argue type from 'uint32_t' to 'unsigned int' in fucntion 'u16550_receive'. Signed-off-by: zhongan <zhongan@xiaomi.com>
change argue type from 'uint32_t' to 'unsigned int' in fucntion 'u16550_receive'. Signed-off-by: zhongan <zhongan@xiaomi.com>