[11u] RFR(S): Bump update version for OpenJDK: jdk-11.0.7

[Lindenmaier, Goetz]

~ Added proper subject line ~

Hi,

to start development of jdk-11.0.7, we need to bump
the version:
http://cr.openjdk.java.net/~goetz/wr19/8234340-version_11.0.7/01/

Please review.

Naturally, I will only push this after dev close of 11.0.6,
and after JBS was updated to tag for 11.0.7.

Thanks,
  Goetz.