T-Deck/T-Watch: enhancements/fixes

[mverch67]

This PR fixes a few issues for T-Deck:

• PSRAM is now correctly detected (also for T-Watch S3):

DEBUG | ??:??:?? 3 Total heap: 269872
DEBUG | ??:??:?? 3 Free heap: 227360
DEBUG | ??:??:?? 3 Total PSRAM: 8386295
DEBUG | ??:??:?? 3 Free PSRAM: 8386295

• GPS default pins set to 43/44 (matching external connector)

DEBUG | ??:??:?? 4 WANT GPS=1
DEBUG | ??:??:?? 4 Using GPIO44 for GPS RX
DEBUG | ??:??:?? 4 Using GPIO43 for GPS TX
DEBUG | ??:??:?? 4 Probing for GPS at 9600 
INFO  | ??:??:?? 5 Found a UBlox Module using baudrate 9600
DEBUG | ??:??:?? 5 Module Info : 
DEBUG | ??:??:?? 5 Soft version: 7.03 (45969)
DEBUG | ??:??:?? 5 Hard version: 00040007
DEBUG | ??:??:?? 5 Extensions:0
WARN  | ??:??:?? 6 Unable to save GNSS module configuration.
DEBUG | ??:??:?? 6 GxGSA NOT available

• Power down keyboard during dark screen (saves 20mA)
• tryfix: battery voltage readout (could not test though, my T-Deck has HW issues)
• bump LovyanGFX version

[github-actions]

🤖 Pull request artifacts

file	commit
pr2786-firmware-2.2.6.cea054d.zip	cea054d