Reduce sd timeout

[bill88t]

Closes #9175.

Tested on WIO Terminal.

[hyx0329]

Hi, this patch doesn't solve the issue that under certain circumstances(or corner case) all call to cmd are timed out, leading to a maximum delay of 200 * 3 * 300 ms = 180,000 ms = 180 seconds.

The last parameter of cmd is a flag to indicate if it should wait using wait_for_ready, whose timeout is defined by READY_TIMEOUT_NS(300ms in the comment).

[bill88t]

I could not come up with a better patch. Closing PR.