jobs/master-builds: clone from gerrit.osmocom.org

Work around two issues with cloning from https://git.osmocom.org:
* cloning via https from git.osmocom.org is unreliable, leads to lots of
  mails of failed builds
* the cgit mirror of libosmo-gprs.git is out of sync

Related: https://lists.osmocom.org/hyperkitty/list/openbsc@lists.osmocom.org/message/YVYMAC423OJ3FNP52YAX55RDUQXV6FZ2/
Change-Id: I2f345be55f5c7eb42655dc346776ad8891af126d

jobs/master-builds.yml

@@ -46,7 +46,7 @@
     wrappers: []
     trigger:
     email: jenkins-notifications@lists.osmocom.org laforge@gnumonks.org
-    git_base_url: https://git.osmocom.org
+    git_base_url: https://gerrit.osmocom.org
 
     # in alphabetical order
     repos:
@@ -73,6 +73,7 @@
             master-libosmo-netif, master-osmo-bts
 
       - libosmo-dsp:
+          git_base_url: https://gitea.osmocom.org/sdr
           cmd: |
             {docker_run} \
               {docker_img} sh -ex -c \
@@ -242,7 +243,8 @@
           cmd: 'docker pull {docker_img} && {docker_run} {docker_img} /build/contrib/jenkins.sh --publish'
           email: gerrit-log@lists.osmocom.org laforge@gnumonks.org kredon@sysmocom.de 246tnt@gmail.com
 
-      - osmo-fl2k
+      - osmo-fl2k:
+          git_base_url: https://gitea.osmocom.org/sdr
       - osmo-ggsn:
           a1_name: GTP
           a1: !!python/tuple [--enable-gtp-linux,--disable-gtp-linux]
@@ -261,6 +263,7 @@
       - osmo-upf
 
       - osmo-gmr:
+          git_base_url: https://gitea.osmocom.org/satellite
           email: gerrit-log@lists.osmocom.org 246tnt@gmail.com
 
       - osmo-gsm-manuals:
@@ -393,6 +396,7 @@
       - osmo-hnbgw
 
       - rtl-sdr:
+          git_base_url: https://gitea.osmocom.org/sdr
           email: laforge@gnumonks.org steve@steve-m.de
 
       - pysim: