There are duplicate library function names between 2 Unit Test libraries
(UnitTestPeiServicesTablePointerLib and UnitTestUefiBootServicesTableLib).
There are 3 functions (UnitTestAllocatePages, UnitTestAllocatePool and
UnitTestFreePage). This update avoids the duplication and prevents a build
error when building a Unit Test application that links the libraries based
on UnitTestFrameworkPkg.
Signed-off-by: Phil Noh <Phil.Noh@amd.com>