sdm: Add support to report the pixel format of the display

Add support to report the pixel format of the display as part of
the display attributes.

CRs-Fixed: 814136
Change-Id: I68f7a6c35c010c67ba91e89c74607dc52b404025
diff --git a/libqdutils/display_config.h b/libqdutils/display_config.h
index 05a7f29..15aba94 100644
--- a/libqdutils/display_config.h
+++ b/libqdutils/display_config.h
@@ -85,8 +85,9 @@
     float xdpi;
     float ydpi;
     char panel_type;
+    bool is_yuv;
     DisplayAttributes() : vsync_period(0), xres(0), yres(0), xdpi(0.0f),
-            ydpi(0.0f), panel_type(0) {}
+            ydpi(0.0f), panel_type(0), is_yuv(false) {}
 } DisplayAttributes_t;
 
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