errata: workaround for Neoverse V1 errata 1925756

Neoverse V1 erratum 1925756 is a Cat B erratum present in r0p0, r1p0,
and r1p1 of the V1 processor core, and it is still open.

SDEN can be found here:
https://documentation-service.arm.com/static/60d499080320e92fa40b4625

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: I6500dc98da92a7c405b9ae09d794d666e8f4ae52
diff --git a/include/lib/cpus/aarch64/neoverse_v1.h b/include/lib/cpus/aarch64/neoverse_v1.h
index 7104d36..cfb26ab 100644
--- a/include/lib/cpus/aarch64/neoverse_v1.h
+++ b/include/lib/cpus/aarch64/neoverse_v1.h
@@ -13,6 +13,7 @@
  * CPU Extended Control register specific definitions.
  ******************************************************************************/
 #define NEOVERSE_V1_CPUECTLR_EL1				S3_0_C15_C1_4
+#define NEOVERSE_V1_CPUECTLR_EL1_BIT_8				(ULL(1) << 8)
 #define NEOVERSE_V1_CPUECTLR_EL1_BIT_53				(ULL(1) << 53)
 
 /*******************************************************************************