update: 减少BLE的内存消耗

src/bt/blehost/porting/xt804/include/syscfg/syscfg.h

@@ -939,7 +939,7 @@
 
 
 #ifndef MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT
-#define MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT (12)
+#define MYNEWT_VAL_BLE_HCI_ACL_OUT_COUNT (6)
 #endif
 
 #ifndef MYNEWT_VAL_BLE_HCI_EVT_BUF_SIZE
@@ -947,11 +947,11 @@
 #endif
 
 #ifndef MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT (16)
+#define MYNEWT_VAL_BLE_HCI_EVT_HI_BUF_COUNT (8)
 #endif
 
 #ifndef MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT
-#define MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT (96)
+#define MYNEWT_VAL_BLE_HCI_EVT_LO_BUF_COUNT (16)
 #endif
 
 #ifndef MYNEWT_VAL_BLE_SOCK_CLI_SYSINIT_STAGE