Remove enum logic from callers of requestbugreport()

Make callers use wrapper functions in ActivityManagerService.java.

requestTelephonyBugReport and requestWifiBugreports have already
existing wrapper functions which take 2 string parameters for title and
description. Passing empty strings in the cases where no title and
description is set.

Bug: 141355059
Bug: 137825297
Test: * builds
      * `adb shell am bug-report` takes full bugreport. Shows share
      notification
      * `adb shell am bug-report --progress` takes interactive
      bugreport. Shows progress notification and share notification
      * `adb shell am bug-report --telephony` takes telephony bugreport.
      Shows share notification.

Change-Id: Ibe479f4335613bfbddc65607ba89ad1805fcba9e