treewide: replace make/build/configure/patchFlags with nix lists

pkgs/tools/cd-dvd/cdrdao/default.nix

@@ -8,7 +8,7 @@ stdenv.mkDerivation {
     sha256 = "0pmpgx91j984snrsxbq1dgf3ximks2dfh1sqqmic72lrls7wp4w1";
   };
 
-  makeFlags = "RM=rm LN=ln MV=mv";
+  makeFlags = [ "RM=rm" "LN=ln" "MV=mv" ];
 
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ libvorbis libmad libao ];

pkgs/tools/cd-dvd/cdrkit/default.nix

@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     ln -s $out/bin/wodim $out/bin/cdrecord
   '';
 
-  makeFlags = "PREFIX=\$(out)";
+  makeFlags = [ "PREFIX=\$(out)" ];
 
   meta = {
     description = "Portable command-line CD/DVD recorder software, mostly compatible with cdrtools";