Update SDK to 2.0.0

- Update SDK header files and libraries to SDK 2.0.0 plus 2.0.0_16_08_09
  patch
- Remove mem_manager.o from libmain.a (replaced with umm_malloc)
- Disable switch from DIO to QIO mode for certain flash chips (saves
  IRAM space)
- Add user_rf_cal_sector_set; it points to rf_init_data sector.
- Change the way rf_init_data is spoofed.
  This is now done by wrapping spi_flash_read and returning the data we
  need during startup sequence.
- Place lwip library into flash using linker script instead of section
  attributes (saves IRAM space)

tools/sdk/include/user_interface.h

@@ -16,6 +16,7 @@
 #include "queue.h"
 #include "user_config.h"
 #include "spi_flash.h"
+#include "gpio.h"
 
 #ifndef MAC2STR
 #define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
@@ -178,6 +179,7 @@ typedef struct bss_info {
     sint16 freq_offset;
     sint16 freqcal_val;
 	uint8 *esp_mesh_ie;
+	uint8 simple_pair;
 } bss_info_t;
 
 typedef struct _scaninfo {
@@ -606,4 +608,7 @@ bool wifi_set_user_ie(bool enable, uint8 *m_oui, uint8 type, uint8 *user_ie, uin
 int wifi_register_user_ie_manufacturer_recv_cb(user_ie_manufacturer_recv_cb_t cb);
 void wifi_unregister_user_ie_manufacturer_recv_cb(void);
 
+void wifi_enable_gpio_wakeup(uint32 i, GPIO_INT_TYPE intr_status);
+void wifi_disable_gpio_wakeup(void);
+
 #endif