Bug#691349: libopencm3: changing back from RFP to ITP

[phil]

retitle 691349 ITP: libopencm3 -- firmware library for ARM Cortex-M3 and 
similar microcontrollers
owner philou <p...@reseau-libte.net>
thanks

Hi,
I'm gonna take care of it. I've started a clean packaging on salsa 
(https://salsa.debian.org/Philou-guest/libopencm3).
The package is now respecting the Debian constraints for cross-libs 
(such as newlib).

I'll finish to make it clean enough and post a RFS.

Cheers,
--
Philippe.