Fixes EspClass::deepSleep(64 bits) (espressif#9077)

* Fixes EspClass::deepSleep(64 bits)

This will change time in microseconds from 32 bits to 64 bits as defined in IDF.

* updates function declaration

Author: SuGlider

cores/esp32/Esp.cpp

@@ -131,7 +131,7 @@ unsigned long long operator"" _GB(unsigned long long x)
 
 EspClass ESP;
 
-void EspClass::deepSleep(uint32_t time_us)
+void EspClass::deepSleep(uint64_t time_us)
 {
     esp_deep_sleep(time_us);
 }

cores/esp32/Esp.h

@@ -86,7 +86,7 @@ class EspClass
     const char * getSdkVersion(); //version of ESP-IDF
     const char * getCoreVersion();//version of this core
 
-    void deepSleep(uint32_t time_us);
+    void deepSleep(uint64_t time_us);
 
     uint32_t getFlashChipSize();
     uint32_t getFlashChipSpeed();