arm64/idreg: Fix tab/space damage

Quite a few of the overrides in idreg-override.c have a mix of tabs and
spaces in their definitions, fix these.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220704170302.2609529-3-broonie@kernel.orgSigned-off-by: Will Deacon <will@kernel.org>