package/autoconf: fix 'uncommitted' typo

Found by codespell.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/autoconf/0001-dont-add-dirty-to-version.patch

@@ -1,7 +1,7 @@
 autoconf: don't append -dirty to version
 
 Don't append -dirty to autoconf version number if the buildroot git tree
-has uncommited changes.
+has uncommitted changes.
 
 This script is meant for the autoconf developers, but it also activates
 if you build autoconf in a subdirectory of a git tree (E.G. like how it's