1. Updated SetJump() and LongJump() for IPF

2. Added assertion for SetJump() for all architectures
3. Added CpuSleep() for IPF

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@464 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseLib/SwitchStack.c

@@ -47,5 +47,9 @@ SwitchStack (
 {
   ASSERT (EntryPoint != NULL && NewStack != NULL);
 
+#ifdef MDE_CPU_IPF
+  ASSERT (((UINTN)NewStack & 0xf) == 0);
+#endif
+
   InternalSwitchStack (EntryPoint, Context1, Context2, NewStack);
 }