ARM: implement erratum 716044 workaround

Add common code to enable the workaround for ARM erratum 716044. This
will be enabled for Tegra.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/README b/README
index 7f2506a..616bfb0 100644
--- a/README
+++ b/README
@@ -485,6 +485,7 @@
 		Thumb2 this flag will result in Thumb2 code generated by
 		GCC.
 
+		CONFIG_ARM_ERRATA_716044
 		CONFIG_ARM_ERRATA_742230
 		CONFIG_ARM_ERRATA_743622
 		CONFIG_ARM_ERRATA_751472