limit aarch64 kernels to ARMV8 only

Author: mattip

tools/build_steps.sh

@@ -172,7 +172,8 @@ EOF
             local bitness=64
             local target="ARMV8"
             # manylinux2014 image uses gcc-10, which miscompiles ARMV8SVE and up
-            local dynamic_list="ARMV8 CORTEXA53 NEOVERSEN1 NEOVERSEN2 VORTEX"
+            # local dynamic_list="ARMV8 CORTEXA53 NEOVERSEN1 NEOVERSEN2 VORTEX"
+            local dynamic_list="ARMV8"
             ;;
         Darwin-arm64)
             local bitness=64