Ivan Grokhotkov 370f4b8556 deep sleep: set pin configuration right before entering deep sleep ...

This change allows setting pin configuration for EXT1 wakeup depending on the state of RTC_PERIPH power domain:
- if peripherals are enabled (due to another wakeup mode, or due to esp_deep_sleep_pd_config call), we can keep internal pullups/pulldowns enabled
- if peripherals are disabled, pullups and pulldowns need to be disabled as well

Also add comments about the purpose of registers being configured.

2016-12-16 14:30:27 +08:00

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