Update the MSBuild toolset versions to VS2017

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/scripts/data_files/vs2017-sln-template.sln b/scripts/data_files/vs2017-sln-template.sln
index 615ce04..80efb10 100644
--- a/scripts/data_files/vs2017-sln-template.sln
+++ b/scripts/data_files/vs2017-sln-template.sln
@@ -1,8 +1,8 @@
 

 Microsoft Visual Studio Solution File, Format Version 12.00

-# Visual Studio 2013

-VisualStudioVersion = 12.0.31101.0

-MinimumVisualStudioVersion = 10.0.40219.1

+# Visual Studio 2017

+VisualStudioVersion = 15.0.26228.4

+MinimumVisualStudioVersion = 15.0.26228.4

 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "mbedTLS", "mbedTLS.vcxproj", "{46CF2D25-6A36-4189-B59C-E4815388E554}"

 EndProject

 APP_ENTRIES