kodi: use project specific cputemp scripts for all projects

[MilhouseVH]

1. All projects other than RPi and Rockchip use the cputemp/gputemp setting in Kodi advancedsettings.xml. This means that RPi (and potentially Rockchip) are at the mercy of Kodi to get it right (which doesn't always happen: see cputemp: give RPi SoC sensor priority #3073)

   With this PR, all projects now use the cputemp and gputemp scripts.

2. The current cputemp script includes logic for all platforms, even old kernels. This is unnecessary when most platforms and kernels use only a single path for the CPU temp.

   With this PR, all projects now use only the path(s) necessary to return the CPU temp for the current kernel.

This means that Amlogic (and possibly others) will need to amend this script when using the mainline kernel. Allwinner - which apparently has a gpu temp sensor - may need to differentiate between cputemp and gputemp based on the script name (see Generic version for details).

Please can the various project maintainers check that I have used the correct /sysfs path for the CPU temperature sensor (based on current LE master kernels). Thanks.

• RPi
• Generic
• Rockchip (same as RPi)
• Amlogic (3.10/3.14)
• WeTek_Core
• WeTek_Play

[MilhouseVH]

Shall we merge this? Any broken platforms can fix themselves.