Add hotspot accessibility description

Bug: 20811452
Change-Id: I8de71b1734d37f6154bc59e59ce17adc0cd6f5f3
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
index 0872e06..6a6266e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
@@ -162,7 +162,8 @@
         mCast.addCallback(mCastCallback);
 
         // hotspot
-        mService.setIcon(SLOT_HOTSPOT, R.drawable.stat_sys_hotspot, 0, null);
+        mService.setIcon(SLOT_HOTSPOT, R.drawable.stat_sys_hotspot, 0,
+                mContext.getString(R.string.accessibility_status_bar_hotspot));
         mService.setIconVisibility(SLOT_HOTSPOT, mHotspot.isHotspotEnabled());
         mHotspot.addCallback(mHotspotCallback);