kbuild: fix a bug of make rule of version_autogenerated.h

include/generated/version_autogenerated.h was not correctly
generated on the parallel build (with -j option).

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reported-by: Andreas Bießmann <andreas.devel@googlemail.com>
1 file changed