Increase timeout of DFU characteristic discovery to fix failed attempts to OTA with dfu.py.

Author: JF002

bootloader/ota-dfu-python/nrf_ble_dfu_controller.py

@@ -162,7 +162,7 @@ def _get_handles(self, uuid):
         self.ble_conn.sendline('characteristics')
 
         try:
-            self.ble_conn.expect([uuid], timeout=2)
+            self.ble_conn.expect([uuid], timeout=10)
             handles = re.findall(b'.*handle: (0x....),.*char value handle: (0x....)', self.ble_conn.before)
             (handle, value_handle) = handles[-1]
         except pexpect.TIMEOUT as e: