[FL-944] Preliminary BLE fix: leave PC4 unconfigured. Cleanup code. (#381)

* GPIO: disable CC1101 GD0 pin configuration. API HAL OS: enable sleep. Cleanup interrupts and gpio code.

* API HAL: disable deep sleep, add light sleep, use it instead.

firmware/targets/api-hal-include/api-hal-power.h

@@ -38,8 +38,8 @@ void api_hal_power_insomnia_exit();
 /* Check if deep sleep availble */
 bool api_hal_power_deep_available();
 
-/* Go to deep sleep */
-void api_hal_power_deep_sleep();
+/* Go to sleep */
+void api_hal_power_sleep();
 
 /* Get predicted remaining battery capacity in percents */
 uint8_t api_hal_power_get_pct();