main/postmarketos-base: udev tm2-touchkey and rt5033-battery

This merge request combines the MRs !2300 (closed) and !2303 (closed).

The udev file 20-tm2-touchkey-leds.rules disables the leds of tm2-touchkey by default because they are in an unconfigured state.

The udev file 95-rt5033-battery-refresh.rules triggers a refresh of the rt5033-battery information within UPower 5 secs after initialization. This avoids a wrong battery icon after boot.

Affected devices are:

• samsung-a3lte
• samsung-a3ulte
• samsung-a5lte
• samsung-a5ulte
• samsung-serranovelte
• samsung-klte (tm2-touchkey only, though currently implemeted differently in device tree)

I think we already kind of agreed that these two udev files can be installed centrally.

In the first approach, I put the udev files to /etc/udev/rules.d. Reconsidering this, preinstalled udev files should go into /lib/udev/rules.d. Therefore I also moved the already existing file 50-firmware.rules.

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Still open is the way of implementation. Currently, there are three proposals:

• Package postmarketos-base: That's where they would go in the current situation.

• New package postmarketos-quirks, linked to package postmarketos-base: This package would allow a more flexible apporach for future cross-device solutions that are too small for a stand-alone package, thematically do not fit well into postmarketos-base and need to be installed on either all devices (main package postmarketos-quirks) or several specific devices (subpackages of postmarketos-quirks).

• New package postmarketos-udev-rules, linked to package postmarketos-base: This would be more clear than postmarketos-quirks but less flexible. Outsourcing udev files to a separate package would prevent to raise the version of postmarketos-base every time an udev files goes in or out.