2. Add AsmReadMsr() & AsmWriteMsr() for IPF architecture
3. update AsmCpuMisc.s to only support GCC tool chain to avoid symbol collision.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7034 6f19259b-4bc3-4df7-8a09-765794883524
2. Two two new ReadApplicationRegister.c(), ReadControlRegister.c() API together with its related definitions in BaseLib.h
3. Remove prototype of AsmSwitchStackAndBackingStore() in public BaseLib.h, it is supposed to be a worker function for AsmSwitchStack()
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6757 6f19259b-4bc3-4df7-8a09-765794883524