MLK-21879-1 fsl_qspi: increase timeout of is_controller_busy

The original codes uses 100ms timeout, but the new is_controller_busy only
try 5 times with each only 1us delay.
When the qspi clock is slower, the controller may need longer time in busy.
On mx7ulp, we meet problem that timeout always happen. So change the codes
to 100ms timeout

Signed-off-by: Ye Li <ye.li@nxp.com>
1 file changed