if users set I2C_M_REV_DIR_ADDR, revert the direction of address.
Signed-off-by: NZhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: NRongjun Ying <rongjun.ying@csr.com>
Signed-off-by: NBarry Song <Baohua.Song@csr.com>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>