Update Saferenderer static builds

DisableTests on qtci-windows-10-x86_64-10
Add flag '-qt-libpng' to qtci-linux-RHEL-7.4-x86_64

Task-number: QSR-432
Change-Id: I3efc7f84f6c2eed49602e491f20f5a4f47512524
Reviewed-by: Jukka Jokiniva <[email protected]>

Author: Tuomas Heimonen

coin/platform_configs/qtsaferenderer.yaml

@@ -5,10 +5,10 @@
 -
     Template: 'qtci-windows-10-x86_64-10'
     Compiler: 'Mingw73'
-    Features: ['Packaging']
+    Features: ['Packaging', 'DisableTests']
     Configure arguments: '-opensource -confirm-license -verbose -prefix c:\Users\qt\work\install -release -developer-build -static -nomake tests -nomake examples -no-icu -opengl dynamic -openssl -I %OPENSSL_INCLUDE_x64% -L %OPENSSL_LIB_x64% -plugin-sql-mysql -plugin-sql-sqlite -plugin-sql-odbc -I %MYSQL_INCLUDE_x64% -L %MYSQL_LIB_x64% -platform win32-g++'
 -
     Template: 'qtci-linux-RHEL-7.4-x86_64'
     Compiler: 'GCC'
     Features: ['Packaging', 'DisableTests']
-    Configure arguments: '-opensource -confirm-license -verbose -prefix /home/qt/work/install -release -developer-build -static -nomake tests -nomake examples -no-use-gold-linker'
+    Configure arguments: '-opensource -confirm-license -verbose -prefix /home/qt/work/install -release -developer-build -static -nomake tests -nomake examples -no-use-gold-linker -qt-libpng'