linux-imx

LF-867: mtd: rawnand: gpmi: fix the driver only sense CS0 R/B issue

set the GPMI CTRL1 GANGED_RDYBUSY bit so dirver can sense the R/B signal
from all CS.

Reviewed-by: Frank Li <frank.li@nxp.com>
Signed-off-by: Han Xu <han.xu@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>