fix a typo preventing pre hwc-1.1 devices from booting

Change-Id: Icf01254689633d04967872749ac947a671e47ed8
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 6509a12..a0c39a9 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -172,6 +172,7 @@
                 "should only have fbdev if no hwc or hwc is 1.0");
 
         DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]);
+        disp.connected = true;
         disp.width = mFbDev->width;
         disp.height = mFbDev->height;
         disp.format = mFbDev->format;