<issue_start><issue_comment>Title: Add SRTC example
username_0: Adds an example for the SRTC using https://github.com/imxrt-rs/imxrt-rs/pull/83, based on your prototype example.

I believe this is more-or-less a realistic example of basic usage. I'll change this as necessary if I need to make any changes to the imxrt-hal SRTC support.
<issue_comment>username_1: Thanks again for the RTC implementation!

bors merge