OpenGL tracing.

Enable with:

adb shell setprop debug.egl.trace 1

Change-Id: Icfbc795f5260141510975228e72234e9aab56a85
diff --git a/opengl/libs/tools/genfiles b/opengl/libs/tools/genfiles
index 120cb4b..50bbf08 100755
--- a/opengl/libs/tools/genfiles
+++ b/opengl/libs/tools/genfiles
@@ -31,3 +31,14 @@
         | sort -t, -k2 \
         | awk -F, '!_[$2]++' \
             > ../entries.in
+
+./gltracegen ../entries.in >../trace.in
+
+cat ../../include/GLES/gl.h \
+    ../../include/GLES/glext.h \
+    ../../include/GLES2/gl2.h \
+    ../../include/GLES2/gl2ext.h \
+        | ./glenumsgen \
+        | sort \
+        > ../enums.in
+