ESP32-S2: Initialize touch in proper order

[dhalbert]

Rework order of touch peripheral initialization code. 048ca2a changed it around slightly. This apparently made the calibration be wrong on pins with any length of trace or wire connected to them, causing the TouchIn.raw_value to be its max 65535, all the time.. Thanks to @microdev1 for help in debugging: the microS2 did not show this problem, which was a clue, because it's a very small board with short traces. When @microdev1 connected a wire to one pin, the problem did appear on that pin.

Tested with TouchIn and also TouchAlarm. Both work now.

Note that TouchAlarm does not work on the MagTag D10 pin, probably because it has a protection Zener and resistor permanently attached.

[dhalbert]

The single build failure is a GitHub Action glitch.

[tannewt]

I suspect the specific issue here is that the internal touch circuitry wasn't actually connected to the outside world by the mux. This would cause the calibration to happen on the internal wires only. The short trace board is probably similar enough to work but not long wires.