Use the global default cpp_std.

Bug: http://b/344590580
Change-Id: I523e556f77e33fbaa6711b9ada7c8646202a2749
diff --git a/media/codec2/components/dav1d/C2SoftDav1dDec.h b/media/codec2/components/dav1d/C2SoftDav1dDec.h
index 6008325..c5c1214 100644
--- a/media/codec2/components/dav1d/C2SoftDav1dDec.h
+++ b/media/codec2/components/dav1d/C2SoftDav1dDec.h
@@ -91,7 +91,7 @@
               coeffs(C2Color::MATRIX_UNSPECIFIED),
               fullRange(C2Color::RANGE_UNSPECIFIED) {}
 
-        bool operator==(const VuiColorAspects& o) {
+        bool operator==(const VuiColorAspects& o) const {
             return primaries == o.primaries && transfer == o.transfer && coeffs == o.coeffs &&
                    fullRange == o.fullRange;
         }