The additional autotooling patched into glew claims the version is 1.9.0
whilst we are building 1.12.0. The version in the autotooling is used to
set the version number in the pkgconfig file, this results in the
configuration of packages which depend on glew > 1.9.0 failing.
This patch updates the version number used in the patches to match that of
the version being built.
