battery: disable wireless for pts battery test

Disable wireless charging during drain, usb charging,
and charger stress test
  - vendor.disable.wlc 1
If a device was put on dreamliner and shut dwon(drain out),
it powered up by DC_CHG and then shut down(0%) again - boot
(by DC_CHG) continuously. To avoid this symptom, limit wireless
current_max as 75000 after devices boot up
  - persist.vendor.limit.wlc.current=1

How to verify:
  adb shell setprop vendor.disable.wlc 1
  adb shell cat /sys/class/power_supply/wireless/online >>>> 0

  adb shell setprop persist.vendor.limit.wlc.current 1
  adb shell cat /sys/class/power_supply/dc/current_max >>>> 75000

Bug: 179094447
Test: set the property manually and query the result from file node.
Change-Id: Ic5791c53f735caa19c73bae750651d774c0d4615
Signed-off-by: Ken Tsou <kentsou@google.com>
(synced from commit 84d73dafb7e44bd195adcc4cbb16bad28728aedc)

init.hardware.wlc.rc.userdebug

@@ -0,0 +1,24 @@
+#
+# Copyright (C) 2018 The Android Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+on property:sys.boot_completed=1 && property:persist.vendor.limit.wlc.current=1
+    write /sys/class/power_supply/dc/current_max 75000
+
+on property:sys.boot_completed=1 && property:persist.vendor.limit.wlc.current=0
+    write /sys/class/power_supply/dc/current_max 1100000
+
+on property:vendor.disable.wlc=1
+    write /sys/class/power_supply/wireless/online 0