hwcomposer : Fix rotator fence for FB pre rotation.

Add framebuffer to rotator map data structure if
rotator is used for pre rotating framebuffer.

Change-Id: I496656c22b289b0bb0bf8c49056384a7fad3ac7d
CRs-fixed: 569696
diff --git a/libhwcomposer/hwc_fbupdate.h b/libhwcomposer/hwc_fbupdate.h
index 0e3f29e..ce6af63 100644
--- a/libhwcomposer/hwc_fbupdate.h
+++ b/libhwcomposer/hwc_fbupdate.h
@@ -66,6 +66,7 @@
     bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list,
             int fbZorder);
     bool preRotateExtDisplay(hwc_context_t *ctx,
+                                 hwc_layer_1_t *layer,
                                  ovutils::Whf &info,
                                  hwc_rect_t& sourceCrop,
                                  ovutils::eMdpFlags& mdpFlags,