Fix broken MSAA for RGBA

src/gpu/gl/GrGLCaps.cpp

Index: src/gpu/gl/GrGLCaps.cpp
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index dce9851ff30147f9ed75e5e04f6830521e6690f6..e6bad383469bff149232b6ecd457cafb923762e0 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -399,7 +399,7 @@ void GrGLCaps::initConfigRenderableTable(const GrGLContextInfo& ctxInfo) {
 
     if (this->fRGBA8RenderbufferSupport) {
         fConfigRenderSupport[kRGBA_8888_GrPixelConfig][kNo_MSAA]  = true;
-        fConfigRenderSupport[kRGBA_4444_GrPixelConfig][kYes_MSAA]  = false;
+        fConfigRenderSupport[kRGBA_8888_GrPixelConfig][kYes_MSAA]  = true;
     }
 
     if (this->fBGRAFormatSupport) {