Moved DataProfile from telephony internal hidden API to System API

This is the preliminary change in order to make the new data call
setup API for IWLAN refactoring.

Test: Telephony sanity tests + unit tests
bug: 64132030

Change-Id: Ib96dc3dd577def0a428e2f5cdb5fb7f742120020
diff --git a/Android.mk b/Android.mk
index b3db409..ed92fc4 100644
--- a/Android.mk
+++ b/Android.mk
@@ -694,6 +694,7 @@
 	frameworks/base/telephony/java/android/telephony/NeighboringCellInfo.aidl \
 	frameworks/base/telephony/java/android/telephony/ModemActivityInfo.aidl \
 	frameworks/base/telephony/java/android/telephony/UiccAccessRule.aidl \
+	frameworks/base/telephony/java/android/telephony/data/DataProfile.aidl \
 	frameworks/base/telephony/java/android/telephony/euicc/DownloadableSubscription.aidl \
 	frameworks/base/telephony/java/android/telephony/euicc/EuiccInfo.aidl \
 	frameworks/base/location/java/android/location/Location.aidl \