Updated eglConfigChoose error message and error clause. (#161178)

fixes https://github.com/flutter/flutter/issues/160806

- The error message will never say success anymore.
- The error clause is slightly more permissive. If this resolves the
issue though, the driver for the emulator has a bug in it since it
shouldn't return `success` and zero configs. It's probably just
indicating that it successfully found zero apropos configs.

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engine/src/flutter/impeller/toolkit/egl/display.cc

@@ -6,6 +6,7 @@
 
 #include <vector>
 
+#include "flutter/fml/logging.h"
 #include "impeller/toolkit/egl/context.h"
 #include "impeller/toolkit/egl/surface.h"
 
@@ -161,8 +162,7 @@ std::unique_ptr<Config> Display::ChooseConfig(ConfigDescriptor config) const {
     return nullptr;
   }
 
-  if (config_count_out != 1u) {
-    IMPELLER_LOG_EGL_ERROR;
+  if (config_count_out < 1) {
     return nullptr;
   }