Update branding to 2.1.6-servicing (#765)

version.props

-<Project>
+<Project>
   <PropertyGroup>
     <VersionPrefix>2.1.6</VersionPrefix>
-    <VersionSuffix>rtm</VersionSuffix>
-    <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' == 'rtm' ">$(VersionPrefix)</PackageVersion>
-    <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' != 'rtm' ">$(VersionPrefix)-$(VersionSuffix)-final</PackageVersion>
+    <VersionSuffix>servicing</VersionSuffix>
+    <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND ('$(VersionSuffix)' == 'servicing' OR '$(VersionSuffix)' == 'rtm') ">$(VersionPrefix)</PackageVersion>
+    <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' != 'servicing' AND '$(VersionSuffix)' != 'rtm' ">$(VersionPrefix)-$(VersionSuffix)-final</PackageVersion>
     <BuildNumber Condition="'$(BuildNumber)' == ''">t000</BuildNumber>
     <FeatureBranchVersionPrefix Condition="'$(FeatureBranchVersionPrefix)' == ''">a-</FeatureBranchVersionPrefix>
     <VersionSuffix Condition="'$(VersionSuffix)' != '' And '$(FeatureBranchVersionSuffix)' != ''">$(FeatureBranchVersionPrefix)$(VersionSuffix)-$([System.Text.RegularExpressions.Regex]::Replace('$(FeatureBranchVersionSuffix)', '[^\w-]', '-'))</VersionSuffix>
     <VersionSuffix Condition="'$(VersionSuffix)' != '' And '$(BuildNumber)' != ''">$(VersionSuffix)-$(BuildNumber)</VersionSuffix>
-    <VersionSuffix Condition="'$(VersionSuffix)' != '' And '$(VersionMetadata)' != ''">$(VersionSuffix)+$(VersionMetadata)</VersionSuffix>
   </PropertyGroup>
 </Project>