userid-validation: add MiTAC to approved list

CLA has been submitted and approved

Change-Id: Iacdb45291dc731c374f9025724172d18eebdba69
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/jenkins/userid-validation b/jenkins/userid-validation
index 41eb765..d0200a3 100755
--- a/jenkins/userid-validation
+++ b/jenkins/userid-validation
@@ -80,6 +80,7 @@
         inventec/ci-authorized \
         lenovo/ci-authorized \
         microsoft/ci-authorized \
+        mitac/ci-authorized \
         nineelements/ci-authorized \
         nuvoton/ci-authorized \
         nvidia/ci-authorized \