errata: workaround for Cortex-A78 errata 1952683

Cortex-A78 erratum 1952683 is a Cat B erratum present in r0p0 of
the Cortex-A78 processor core, and it was fixed in r1p0.

A78 SDEN : https://developer.arm.com/documentation/SDEN1401784/1400

Signed-off-by: nayanpatel-arm <nayankumar.patel@arm.com>
Change-Id: I77b03e695532cb13e8f8d3f00c43d973781ceeb0
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index b366167..7175103 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -319,6 +319,10 @@
 # to revisions r0p0 and r1p0 of the A78 cpu.
 ERRATA_A78_1821534	?=0
 
+# Flag to apply erratum 1952683 workaround during reset. This erratum applies
+# to revision r0p0 of the A78 cpu and was fixed in the revision r1p0.
+ERRATA_A78_1952683	?=0
+
 # Flag to apply T32 CLREX workaround during reset. This erratum applies
 # only to r0p0 and r1p0 of the Neoverse N1 cpu.
 ERRATA_N1_1043202	?=0
@@ -658,6 +662,10 @@
 $(eval $(call assert_boolean,ERRATA_A78_1821534))
 $(eval $(call add_define,ERRATA_A78_1821534))
 
+# Process ERRATA_A78_1952683 flag
+$(eval $(call assert_boolean,ERRATA_A78_1952683))
+$(eval $(call add_define,ERRATA_A78_1952683))
+
 # Process ERRATA_N1_1043202 flag
 $(eval $(call assert_boolean,ERRATA_N1_1043202))
 $(eval $(call add_define,ERRATA_N1_1043202))