powerstats: remove common data providers in specific directory

The common data providers will be moved to gs common directory. So
I removed them in this directory and used gs common library to get
the APIs.

Bug: 206576142
Test: dumpsys android.hardware.power.stats.IPowerStats/default
Change-Id: Ic4c1379af912fecb2e74c6c8303bf57f27e49246
Signed-off-by: Darren Hsu <darrenhsu@google.com>
diff --git a/powerstats/Android.bp b/powerstats/Android.bp
index 10ecbed..74b7242 100644
--- a/powerstats/Android.bp
+++ b/powerstats/Android.bp
@@ -11,6 +11,14 @@
 // 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.
+
+soong_namespace {
+    imports: [
+        "hardware/google/pixel",
+        "device/google/gs-common/powerstats",
+    ],
+}
+
 package {
     // See: http://go/android-license-faq
     // A large-scale-change added 'default_applicable_licenses' to import
@@ -33,6 +41,7 @@
     ],
 
     shared_libs: [
+        "android.hardware.power.stats-impl.gs-common",
         "android.hardware.power.stats-impl.pixel",
     ],
 }