make: update dist target after libextra split

libextra is currently being split into several crates. This commit adds
them all to the dist target in order to have them in the final tarballs.

Signed-off-by: Luca Bruno <lucab@debian.org>

Author: lucab

mk/dist.mk

@@ -27,18 +27,11 @@ PKG_FILES := \
     $(S)doc                                    \
     $(addprefix $(S)src/,                      \
       README.md                                \
-      driver                                   \
-      librustc                                 \
       compiletest                              \
+      driver                                   \
       etc                                      \
-      libextra                                 \
-      libstd                                   \
-      libsyntax                                \
-      librustuv				       \
-      libgreen 				       \
-      libnative 			       \
+      $(foreach crate,$(CRATES),lib$(crate))   \
       rt                                       \
-      librustdoc                               \
       rustllvm                                 \
       snapshots.txt                            \
       test)                                    \