PSCI: Remove references to affinity based power management

As per Section 4.2.2. in the PSCI specification, the term "affinity"
is used in the context of describing the hierarchical arrangement
of cores. This often, but not always, maps directly to the processor
power domain topology of the system. The current PSCI implementation
assumes that this is always the case i.e. MPIDR based levels of
affinity always map to levels in a power domain topology tree.

This patch is the first in a series of patches which remove this
assumption. It removes all occurences of the terms "affinity
instances and levels" when used to describe the power domain
topology. Only the terminology is changed in this patch. Subsequent
patches will implement functional changes to remove the above
mentioned assumption.

Change-Id: Iee162f051b228828310610c5a320ff9d31009b4e
diff --git a/include/plat/common/psci1.0/platform.h b/include/plat/common/psci1.0/platform.h
index 469d46b..50af4f8 100644
--- a/include/plat/common/psci1.0/platform.h
+++ b/include/plat/common/psci1.0/platform.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2015, 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:
@@ -182,8 +182,8 @@
  * Mandatory PSCI functions (BL3-1)
  ******************************************************************************/
 int platform_setup_pm(const struct plat_pm_ops **);
-unsigned int plat_get_aff_count(unsigned int, unsigned long);
-unsigned int plat_get_aff_state(unsigned int, unsigned long);
+unsigned int plat_get_pwr_domain_count(unsigned int, unsigned long);
+unsigned int plat_get_pwr_domain_state(unsigned int, unsigned long);
 
 /*******************************************************************************
  * Optional BL3-1 functions (may be overridden)