Integrate meta-guf-distro/ts-lib-use-shared-configs
tslib: load pointercal and config from shared, ignore missing modules
To use the calibration done in fngsystem, config file and pointercal need to be loaded from etc/shared. This is done by setting the related env variables when these files are found. Add a patch to tslib to ignore missing modules configure in ts.conf, as we used to use some special modules in the configs, not available anymore.