v6: set version to 6.000

Any future bugfix release(s) will be 6.001 (ie. 6001), etc.

Test: N/A
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I16f041852cdfe80d7e0f76f10163d78aa9e063d7
1 file changed