Camera1: Rename setPreviewTexture to ...Target for clarity

Bug: 10312644
Change-Id: I19976188f0359bfd177209fb40145defdae9c740
diff --git a/include/camera/Camera.h b/include/camera/Camera.h
index b1b2e95..79682b8 100644
--- a/include/camera/Camera.h
+++ b/include/camera/Camera.h
@@ -81,9 +81,9 @@
             status_t    unlock();
 
             // pass the buffered IGraphicBufferProducer to the camera service
-            status_t    setPreviewTexture(const sp<IGraphicBufferProducer>& bufferProducer);
+            status_t    setPreviewTarget(const sp<IGraphicBufferProducer>& bufferProducer);
 
-            // start preview mode, must call setPreviewTexture first
+            // start preview mode, must call setPreviewTarget first
             status_t    startPreview();
 
             // stop preview mode
@@ -92,7 +92,7 @@
             // get preview state
             bool        previewEnabled();
 
-            // start recording mode, must call setPreviewTexture first
+            // start recording mode, must call setPreviewTarget first
             status_t    startRecording();
 
             // stop recording mode