icc_sre_el2 register not recognised with arm-none-eabi

I am trying to access the ARMV8 system register icc_sre_el2 but get an unknown or missing system register error.

See below for the list of available registers for ARMV8


When using some other registers from the list the build is successful. But anything with icc_, ich_ prefixes produces a failure.

What do I need to do to fix this? 

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