fix(ras): trap "RAS error record" accesses only for NS

RAS_TRAP_LOWER_EL_ERR_ACCESS was used to prevent access to RAS error
record registers (RAS ERR* & RAS ERX*) from lower EL's in any security
state. To give more fine grain control per world basis re-purpose this
macro to RAS_TRAP_NS_ERR_REC_ACCESS, which will enable the trap only
if Error record registers are accessed from NS.
This will also help in future scenarios when RAS handling(in Firmware
first handling paradigm)can be offloaded to a secure partition.

This is first patch in series to refactor RAS framework in TF-A.

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: Ifa7f60bc8c82c9960adf029001bc36c443016d5d
diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index 5e73120..65ceb7f 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -413,8 +413,8 @@
 # Select workaround for AT speculative behaviour.
 ERRATA_SPECULATIVE_AT		:= 0
 
-# Trap RAS error record access from lower EL
-RAS_TRAP_LOWER_EL_ERR_ACCESS	:= 0
+# Trap RAS error record access from Non secure
+RAS_TRAP_NS_ERR_REC_ACCESS	:= 0
 
 # Build option to create cot descriptors using fconf
 COT_DESC_IN_DTB			:= 0