subversion: set CVE vendor to Apache

There's a Jenkins plugin for Subversion.

(From OE-Core rev: ac115c3b)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Conflicts:
	meta/recipes-devtools/subversion/subversion_1.12.0.bb