Update to github.com/mtrmac/gpgme v0.1.2

This fixes CVE-2020-8945 by incorporating proglottis/gpgme#23 .

Other changes included by the rebase:
- Support for gpgme_off_t (~no-op on Linux)
- Wrapping a few more GPGME functions (irrelevant if we don't call them)

Given how invasive the CVE fix is (affecting basically all binding
code), it seems safer to just update the package (and be verifiably
equivalent with upstream) than to backport and try to back out the few
other changes.

Performed by updating vendor conf and
$ vndr github.com/mtrmac/gpgme

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

Author: mtrmac

vendor.conf

@@ -47,7 +47,7 @@ github.com/xeipuuv/gojsonschema v1.1.0
 go4.org ce4c26f7be8eb27dc77f996b08d286dd80bc4a01 https://github.com/camlistore/go4
 github.com/ostreedev/ostree-go 56f3a639dbc0f2f5051c6d52dade28a882ba78ce
 # -- end OCI image validation requirements
-github.com/mtrmac/gpgme b2432428689ca58c2b8e8dea9449d3295cf96fc9
+github.com/mtrmac/gpgme v0.1.2
 # openshift/origin' k8s dependencies as of OpenShift v1.1.5
 k8s.io/client-go kubernetes-1.10.13-beta.0
 github.com/ghodss/yaml 73d445a93680fa1a78ae23a5839bad48f32ba1ee