Support constant and varying colors in ProgramFragment.

Change-Id: I16ce84ff427016f3a1923594efc718eca32dd7f2
diff --git a/libs/rs/rsFont.cpp b/libs/rs/rsFont.cpp
index e58d8b1..a741adc 100644
--- a/libs/rs/rsFont.cpp
+++ b/libs/rs/rsFont.cpp
@@ -379,12 +379,12 @@
 
 void FontState::initRenderState()
 {
-    uint32_t tmp[5] = {
+    uint32_t tmp[] = {
         RS_TEX_ENV_MODE_REPLACE, 1,
         RS_TEX_ENV_MODE_NONE, 0,
-        0
+        0, 0
     };
-    ProgramFragment *pf = new ProgramFragment(mRSC, tmp, 5);
+    ProgramFragment *pf = new ProgramFragment(mRSC, tmp, 6);
     mFontShaderF.set(pf);
     mFontShaderF->init(mRSC);