fix[2798925] Gingerbread TOT not booting

Fixed a typo where checking against the wrong constant caused GL_TEXTURE_EXTERNAL_OES
to be used with a regular texture, which some GL driver will choke on.

Change-Id: I93dfc4c8fa674433bbb678eee31954e9a8d0cb4b
diff --git a/libs/surfaceflinger/TextureManager.cpp b/libs/surfaceflinger/TextureManager.cpp
index e4dd42f..fa19256 100644
--- a/libs/surfaceflinger/TextureManager.cpp
+++ b/libs/surfaceflinger/TextureManager.cpp
@@ -297,22 +297,19 @@
 void TextureManager::activateTexture(const Texture& texture, bool filter)
 {
     const GLenum target = getTextureTarget(&texture);
-    if (target == Texture::TEXTURE_2D) {
+    if (target == GL_TEXTURE_2D) {
         glBindTexture(GL_TEXTURE_2D, texture.name);
         glEnable(GL_TEXTURE_2D);
 #if defined(GL_OES_texture_external)
         if (GLExtensions::getInstance().haveTextureExternal()) {
             glDisable(GL_TEXTURE_EXTERNAL_OES);
         }
-#endif
-    }
-#if defined(GL_OES_texture_external)
-    else {
+    } else {
         glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture.name);
         glEnable(GL_TEXTURE_EXTERNAL_OES);
         glDisable(GL_TEXTURE_2D);
-    }
 #endif
+    }
 
     if (filter) {
         glTexParameterx(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);