esp-nimble: Conditionally include nimble config for ESP platform

This change segregates nimble config for ESP platform from upstream
config. This should ease process of maintaining esp-nimble repository.

porting/nimble/include/syscfg/syscfg.h

@@ -5,6 +5,10 @@
 #ifndef H_MYNEWT_SYSCFG_
 #define H_MYNEWT_SYSCFG_
 
+#ifdef ESP_PLATFORM
+#include "esp_nimble_cfg.h"
+#else
+
 /**
  * This macro exists to ensure code includes this header when needed.  If code
  * checks the existence of a setting directly via ifdef without including this
@@ -100,7 +104,7 @@
 #endif
 
 #ifndef MYNEWT_VAL_MSYS_1_BLOCK_COUNT
-#define MYNEWT_VAL_MSYS_1_BLOCK_COUNT (12)
+#define MYNEWT_VAL_MSYS_1_BLOCK_COUNT (20)
 #endif
 
 #ifndef MYNEWT_VAL_MSYS_1_BLOCK_SIZE
@@ -458,7 +462,7 @@
 #endif
 
 #ifndef MYNEWT_VAL_BLE_MAX_CONNECTIONS
-#define MYNEWT_VAL_BLE_MAX_CONNECTIONS (2)
+#define MYNEWT_VAL_BLE_MAX_CONNECTIONS (4)
 #endif
 
 #ifndef MYNEWT_VAL_BLE_MAX_PERIODIC_SYNCS
@@ -1370,6 +1374,10 @@
 #define MYNEWT_VAL_BLE_TRANSPORT_EVT_COUNT (4)
 #endif
 
+#ifndef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
+#define MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT (30)
+#endif
+
 #ifndef MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT
 #define MYNEWT_VAL_BLE_TRANSPORT_EVT_DISCARDABLE_COUNT (16)
 #endif
@@ -1551,3 +1559,4 @@
 #define MYNEWT_PKG_apache_mynewt_nimble__porting_targets_porting_default 1
 
 #endif
+#endif