wr-switch-sw-v4.1.2

This release fixes a few problems we found in the previous release:

- The SCB type used for PLL configuration now depends on the hwinfo partition and not on the DF type.
- Correct reboot procedure in the web interface.

The v4.1.2 release is mandatory for 7S-SCBv3.4-S2 boards (otherwise the PLL is not correctly programmed). For other hardware version, it is recommended if you are a web interface user.