pwm: lpss: Split Tangier configuration

As a preparation for special treatment for Broxton we split Tangier
configuration.

Fixes: b89b4b7a3d0a ("pwm: lpss: pci: Enable PWM module on Intel Edison")
Signed-off-by: Andy Shevchenko <[email protected]>
Tested-by: Hans de Goede <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
1 file changed