Clean up MtrrLib to remove unnecessary package dependency
Add it to the [Components] section of UefiCpuPkg for build validation

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9823 6f19259b-4bc3-4df7-8a09-765794883524
diff --git a/UefiCpuPkg/UefiCpuPkg.dsc b/UefiCpuPkg/UefiCpuPkg.dsc
index 4b71338..51df866 100644
--- a/UefiCpuPkg/UefiCpuPkg.dsc
+++ b/UefiCpuPkg/UefiCpuPkg.dsc
@@ -74,3 +74,4 @@
 [Components.IA32, Components.X64]

   UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf

   UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf

+  UefiCpuPkg/Library/MtrrLib/MtrrLib.inf
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