reset I2C_WAKEUP_EN bit with Clock reset

targets/TARGET_RDA/TARGET_UNO_91H/rda_ccfg_api.c

@@ -233,6 +233,8 @@ void rda_ccfg_ckrst(void)
     /* Config BUS clock */
     val &= ~(0x01U << 9);
     val |=  (0x00U << 9);  /* 1'b0:40M, 1'b1:80M */
+
+    val |=  (0x01U);        /* clear i2c_wakeup_en */
     wr_rf_usb_reg(0xA4, val, 0);
 }