mmc: dw_mmc: fix the wrong Mask bit boundary for fifo_count bit
According to DesignWare TRM, FIFO_COUNT is bit[29:17].
If get the correct fifo_count value, it has to use the FIFO_MASK
as 0x1FFF, not 0x1FF.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Jaehoon Chung