fix(cpus): fix minor issue seen with a9 cpu

fix typo in a9_794073 report errata.

Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
Change-Id: Iace9f7fd18af529823488b6b6cb79e6bc13b9d4d
diff --git a/lib/cpus/aarch32/cortex_a9.S b/lib/cpus/aarch32/cortex_a9.S
index 762f75f..9e75e4e 100644
--- a/lib/cpus/aarch32/cortex_a9.S
+++ b/lib/cpus/aarch32/cortex_a9.S
@@ -68,7 +68,7 @@
 	 * checking functions of each errata.
 	 */
 	report_errata WORKAROUND_CVE_2017_5715, cortex_a9, cve_2017_5715
-	report_errata ERRATA_A9_794073, cortex_a9, a9_79407
+	report_errata ERRATA_A9_794073, cortex_a9, a9_794073
 
 	pop	{r12, lr}
 	bx	lr