8250.c:sync the file to fix a bug

in serial8250_do_set_termios function,
if set DLAB bit which in LCR without
any protection,this set operation will fail
sun6i: add i2c bus driver
aw163x: mmc: codes for new version
    1 merge mmc host driver into host directory
    2 add emmc feature support
    3 add sd3.0 feature support
    4 host card detect interrupt support (not used ever)
    5 remove some codes associated with sdio-pm control
sun6i: add tmp pack environment