Update BuildTools, PgoData to rc1-02801-02, release-20180502-0048, respectively (#17860)

Author: dotnet-maestro-bot

BuildToolsVersion.txt

@@ -1 +1 @@
-2.1.0-rc1-02726-01
+2.1.0-rc1-02801-02

dependencies.props

@@ -25,15 +25,15 @@
   <PropertyGroup>
     <CoreFxCurrentRef>3ee7598d30c4a8001acf38b3eba039d2adca32f0</CoreFxCurrentRef>
     <CoreClrCurrentRef>3ee7598d30c4a8001acf38b3eba039d2adca32f0</CoreClrCurrentRef>
-    <BuildToolsCurrentRef>3ee7598d30c4a8001acf38b3eba039d2adca32f0</BuildToolsCurrentRef>
-    <PgoDataCurrentRef>847f901ca38112f7702c07a89343dd52396c4ae9</PgoDataCurrentRef>
+    <BuildToolsCurrentRef>2696080f7aff31f90447d6030c43fa4792a55fdf</BuildToolsCurrentRef>
+    <PgoDataCurrentRef>2696080f7aff31f90447d6030c43fa4792a55fdf</PgoDataCurrentRef>
   </PropertyGroup>
 
   <!-- Tests/infrastructure dependency versions. -->
   <PropertyGroup>
     <MicrosoftPrivateCoreFxNETCoreAppPackageVersion>4.5.0-rc1-26423-06</MicrosoftPrivateCoreFxNETCoreAppPackageVersion>
     <MicrosoftNETCorePlatformsPackageVersion>2.1.0-rc1-26423-06</MicrosoftNETCorePlatformsPackageVersion>
-    <PgoDataPackageVersion>2.1.0-release-20180501-0050</PgoDataPackageVersion>
+    <PgoDataPackageVersion>2.1.0-release-20180502-0048</PgoDataPackageVersion>
     <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>2.1.0-rc1-26423-02</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
     <XunitPackageVersion>2.2.0-beta2-build3300</XunitPackageVersion>
     <XunitConsoleNetcorePackageVersion>1.0.2-prerelease-00177</XunitConsoleNetcorePackageVersion>
@@ -51,7 +51,7 @@
   <!-- Package versions used as toolsets -->
   <PropertyGroup>
     <FeedTasksPackage>Microsoft.DotNet.Build.Tasks.Feed</FeedTasksPackage>
-    <FeedTasksPackageVersion>2.1.0-rc1-02726-01</FeedTasksPackageVersion>
+    <FeedTasksPackageVersion>2.1.0-rc1-02801-02</FeedTasksPackageVersion>
   </PropertyGroup>
 
   <!-- Publish symbol build task package -->