Merge pull request #143 from DRuffer/boards-arm-Fix-documentation-for-efm32pg_stk3402a-and-tmo_dev_edge

boards: arm: Fix documentation for efm32pg_stk3402a and tmo_dev_edge

Author: johnlange2

samples/tmo_shell/boards/tmo_dev_edge.conf

@@ -8,12 +8,14 @@ CONFIG_DEVICE_SHELL=y
 CONFIG_GPIO_SHELL=y
 CONFIG_SOC_GECKO_EMU_DCDC=y
 CONFIG_SOC_GECKO_EMU_DCDC_MODE_OFF=y
+CONFIG_I2C=y
 CONFIG_REBOOT=y
-CONFIG_COUNTER=y
 CONFIG_LED=y
 CONFIG_LED_PWM=y
 CONFIG_LED_SHELL=y
+CONFIG_PWM=y
 CONFIG_PWM_SHELL=y
+CONFIG_PWM_GECKO=y
 CONFIG_SENSOR=y
 CONFIG_SENSOR_SHELL=y
 CONFIG_LPS22HH=y