feat(phy): update phy library from 1058.14 to 1058.15

1. Optimize clock setting in wake-up
espressif · woshiokteng · Jun 17, 2019 · Jun 18, 2019 · Jul 2, 2019 · Jul 2, 2019
commit 904bf440c5caba5d01ee630ed7447d0afd3fd718
diff --git a/components/esp8266/lib/VERSION b/components/esp8266/lib/VERSION
@@ -7,4 +7,4 @@ gwen:
     wps:        8ce4f42
 
     smartconfig:  2.8.1
-    phy:         1058.14
+    phy:         1058.15
diff --git a/components/esp8266/lib/libphy.a b/components/esp8266/lib/libphy.a
diff --git a/examples/system/factory-test/components/rf_test/lib/librftest.a b/examples/system/factory-test/components/rf_test/lib/librftest.a