bitbake.conf: Add bash-completion-native to ASSUME_PROVIDED

With some native dependency handling fixes under discussion,
bash-completiion-native makes it into the dependency chain. Add this
to ASSUME_PROVIDED since we don't want to build it rather than trying
to remove all references in the native case (it comes from
glib-2.0-native).

(From OE-Core rev: 401706ed6d51917d76726098a767932970990805)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/conf/bitbake.conf

@@ -205,6 +205,7 @@ DATETIME = "${DATE}${TIME}"
 # its own in staging
 ASSUME_PROVIDED = "\
     bash-native \
+    bash-completion-native \
     bzip2-native \
     chrpath-native \
     diffstat-native \