arm64/sysreg: Convert ID_AA64DFR1_EL1 to automatic generation

Convert ID_AA64FDR1_EL1 to automatic generation as per DDI0487I.a, no
functional changes.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220910163354.860255-6-broonie@kernel.org


Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>