Configure PRISM defaults for nakasi correctly

Don't need to modify hwc anymore

Bug: 11030752

Change-Id: Ica6b5320c14e73216d72806dd410deaaf9d79d29
Signed-off-by: Ed Tam <etam@google.com>

Conflicts:
	system.prop
diff --git a/system.prop b/system.prop
index befcf94..eb317ad 100644
--- a/system.prop
+++ b/system.prop
@@ -14,3 +14,6 @@
 
 # don't preload OpenGL in Zygote, the Tegra drivers do not like it
 ro.zygote.disable_gl_preload=true
+
+# configure PRISM
+persist.tegra.didim.video = 5