Update openSUSE to 15.1

Task-number: QTQAINFRA-3455
Change-Id: Ie795f19c26ab0c42693388696edb344b4fa121a6
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Liang Qi <liang.qi@qt.io>

coin/platform_configs/default.yaml

@@ -55,16 +55,16 @@ Configurations:
     Configure arguments: '-opensource -confirm-license -verbose -prefix /home/qt/work/install -developer-build -nomake tests -R . -qtlibinfix TestInfix -qtnamespace TestNamespace -openssl -I {{.Env.OPENSSL_HOME}}/include -L {{.Env.OPENSSL_HOME}}/lib'
 
 -
-    Template: 'qtci-linux-openSUSE-15.0-x86_64'
+    Template: 'qtci-linux-openSUSE-15.1-x86_64'
     Compiler: 'GCC'
     Configure arguments: '-opensource -confirm-license -verbose -prefix /home/qt/work/install -developer-build -nomake tests -nomake examples -no-pch -R . -openssl -I {{.Env.OPENSSL_HOME}}/include -L {{.Env.OPENSSL_HOME}}/lib'
 -
-    Template: 'qtci-linux-openSUSE-15.0-x86_64'
+    Template: 'qtci-linux-openSUSE-15.1-x86_64'
     Compiler: 'ICC_18'
     Features: ['DisableTests']
     Configure arguments: '-opensource -confirm-license -verbose -prefix /home/qt/work/install -developer-build -nomake tests -nomake examples -no-pch -system-sqlite -R . -platform linux-icc-64 -openssl -I {{.Env.OPENSSL_HOME}}/include -L {{.Env.OPENSSL_HOME}}/lib'
 -
-    Template: 'qtci-linux-openSUSE-15.0-x86_64'
+    Template: 'qtci-linux-openSUSE-15.1-x86_64'
     Target os: 'WebAssembly'
     Compiler: 'GCC'
     Features: ['Packaging', 'DisableTests']

coin/platform_configs/qtbase.yaml

@@ -19,7 +19,7 @@
     Compiler: 'MSVC2015'
     Configure arguments: '-opensource -confirm-license -verbose -prefix c:\Users\qt\work\install -release -developer-build -static -nomake tests -nomake examples -no-icu -force-debug-info -platform win32-msvc2015 -xplatform winrt-x64-msvc2015'
 -
-    Template: 'qtci-linux-openSUSE-15.0-x86_64'
+    Template: 'qtci-linux-openSUSE-15.1-x86_64'
     Target os: 'WebAssembly'
     Compiler: 'GCC'
     Features: ['DisableTests']

coin/provisioning/qtci-linux-openSUSE-15.1-x86_64/08-pythondev.sh

@@ -5,7 +5,7 @@
 
 set -ex
 
-sudo zypper -nq install python-devel python-virtualenv
+sudo zypper -nq install python-devel python-xml
 
 # install python3
 sudo zypper -nq install python3-base python3 python3-pip python3-devel python3-virtualenv python3-wheel