Update terminology: standard SMC to yielding SMC

Since Issue B (November 2016) of the SMC Calling Convention document
standard SMC calls are renamed to yielding SMC calls to help avoid
confusion with the standard service SMC range, which remains unchanged.

http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf

This patch adds a new define for yielding SMC call type and deprecates
the current standard SMC call type. The tsp is migrated to use this new
terminology and, additionally, the documentation and code comments are
updated to use this new terminology.

Change-Id: I0d7cc0224667ee6c050af976745f18c55906a793
Signed-off-by: David Cunado <david.cunado@arm.com>
diff --git a/bl32/tsp/tsp_main.c b/bl32/tsp/tsp_main.c
index 2b36532..b4010f3 100644
--- a/bl32/tsp/tsp_main.c
+++ b/bl32/tsp/tsp_main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -372,7 +372,7 @@
 	tsp_stats[linear_id].eret_count++;
 
 	INFO("TSP: cpu 0x%lx received %s smc 0x%lx\n", read_mpidr(),
-		((func >> 31) & 1) == 1 ? "fast" : "standard",
+		((func >> 31) & 1) == 1 ? "fast" : "yielding",
 		func);
 	INFO("TSP: cpu 0x%lx: %d smcs, %d erets\n", read_mpidr(),
 		tsp_stats[linear_id].smc_count,
@@ -418,7 +418,7 @@
 
 /*******************************************************************************
  * TSP smc abort handler. This function is called when aborting a preemtped
- * standard SMC request. It should cleanup all resources owned by the SMC
+ * yielding SMC request. It should cleanup all resources owned by the SMC
  * handler such as locks or dynamically allocated memory so following SMC
  * request are executed in a clean environment.
  ******************************************************************************/