BLE: provide better default connection parameters.

Author: pan-

features/FEATURE_BLE/ble/gap/ConnectionParameters.h

@@ -145,10 +145,10 @@ class ConnectionParameters {
         phy_t phy = phy_t::LE_1M,
         scan_interval_t scanInterval = scan_interval_t::min(),
         scan_window_t scanWindow = scan_window_t::min(),
-        conn_interval_t minConnectionInterval = conn_interval_t::min(),
-        conn_interval_t maxConnectionInterval = conn_interval_t::max(),
+        conn_interval_t minConnectionInterval = conn_interval_t(50),
+        conn_interval_t maxConnectionInterval = conn_interval_t(100),
         slave_latency_t slaveLatency = slave_latency_t::min(),
-        supervision_timeout_t connectionSupervisionTimeout = supervision_timeout_t::max(),
+        supervision_timeout_t connectionSupervisionTimeout = supervision_timeout_t(100),
         conn_event_length_t minEventLength = conn_event_length_t::min(),
         conn_event_length_t maxEventLength = conn_event_length_t::max()
     );