g760a.sh: Use common test framework

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
lm93.sh: Be quiet

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add test script for lineage-pem driver

Signed-off-by: Guenter Roeck <linux@roeck-us.net>