drivers/sdcard_spi: convert to ztimer_usec

[fjmolinas]

Contribution description

Offline @bergzand asked if I could split the different changes in #17233, so here goes only migrating to ztimer.

There is an uncristify commit so commits are better reviewed one by one.

Testing procedure

• sdcard tests still work, tested on samr21-xpro + io1-xplained shield. Using fatfs.

mount
2021-12-09 08:16:34,342 # mount
2021-12-09 08:16:34,381 # /sda successfully mounted
> ls /sda
2021-12-09 08:16:36,281 # ls /sda
2021-12-09 08:16:36,286 # SDA
2021-12-09 08:16:36,286 # TEST.TXT
2021-12-09 08:16:36,288 # total 2 files
> cat /sda/SDA/
2021-12-09 08:16:43,609 # cat /sda/SDA/
2021-12-09 08:16:43,612 # file /sda/SDA/ does not exist
> cat /sda/TEST.TXT
2021-12-09 08:16:49,606 # cat /sda/TEST.TXT
2021-12-09 08:16:51,503 # hello> cat /sda/TEST.TXT
tee /sda/test2.txt "hello hello\n"
2021-12-09 08:17:03,619 # hello> tee /sda/test2.txt "hello hello\n"
> cat /sda/test2.txt
2021-12-09 08:17:11,010 # cat /sda/test2.txt
2021-12-09 08:17:12,290 # hello hellon> cat /sda/test2.txt

Issues/PRs references

Split from #17233

[bergzand]

In general I'm okay with the changes in this PR. I've spotted a few sleeps that could be converted to use the millisecond timer, but I'm fine with putting that in a follow up.

[bergzand]

Please squash!

[bergzand]

Ack, changes look good and the test output is provided.

[fjmolinas]

I casted at the wrong place, squashed right away

[bergzand]

My ack holds