Update to preview branding

Update the implicit versions for Jan

Author: marcpopMSFT

eng/Versions.props

@@ -18,7 +18,7 @@
     <StabilizePackageVersion Condition="'$(StabilizePackageVersion)' == ''">false</StabilizePackageVersion>
     <DotNetFinalVersionKind Condition="'$(StabilizePackageVersion)' == 'true'">release</DotNetFinalVersionKind>
     <!-- Calculate prerelease label -->
-    <PreReleaseVersionLabel Condition="'$(StabilizePackageVersion)' != 'true'">alpha</PreReleaseVersionLabel>
+    <PreReleaseVersionLabel Condition="'$(StabilizePackageVersion)' != 'true'">preview</PreReleaseVersionLabel>
     <PreReleaseVersionLabel Condition="'$(StabilizePackageVersion)' == 'true' and $(VersionPrefix.EndsWith('00'))">rtm</PreReleaseVersionLabel>
     <PreReleaseVersionLabel Condition="'$(StabilizePackageVersion)' == 'true' and !$(VersionPrefix.EndsWith('00'))">servicing</PreReleaseVersionLabel>
     <PreReleaseVersionIteration Condition="'$(StabilizePackageVersion)' != 'true'">1</PreReleaseVersionIteration>
@@ -37,8 +37,8 @@
     <VersionFeature50>17</VersionFeature50>
     <VersionFeature60>36</VersionFeature60>
     <VersionFeature70>20</VersionFeature70>
-    <VersionFeature80>11</VersionFeature80>
-    <VersionFeature90>0</VersionFeature90>
+    <VersionFeature80>12</VersionFeature80>
+    <VersionFeature90>1</VersionFeature90>
     <!-- Should be kept in sync with VersionFeature70. It should match the version of Microsoft.NET.ILLink.Tasks
          referenced by the same 7.0 SDK that references the 7.0.VersionFeature70 runtime pack. -->
     <_NET70ILLinkPackVersion>7.0.100-1.23211.1</_NET70ILLinkPackVersion>