contrib: add more stuff for WinCE

This is now at least as much as in geal's contrib package

extras/contrib/src/Distributions/wince.mak

 # WinCE rules
-all: .errno .zlib \
-        .a52 .ogg .tremor .theora .ffmpeg \
+all: .errno .iconv .zlib \
+        .a52 .mpeg2 .ogg .tremor .theora .vorbis .ffmpeg \
         .live .dvbpsi
-#       .faad .vorbis .lame .mpeg2
+#       .faad .lame