UnitTestFrameworkPkg: Use host libraries from MdePkg

UnitTestFrameworkPkg: Use host libraries from MdePkg

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2800
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2799
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2798

Update the default unit test library mappings to use the
library instances from the MdePkg that are safe for host
based unit tests.

Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Bret Barkelew <Bret.Barkelew@microsoft.com>