Fix label so that pre_disable_mmu_workaround() is called
before clearing sctlr_el1.M.

Fixes: 2ced0f30 ("arm64: head: Switch endianness before populating the ID map")
Signed-off-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20230425095700.22005-1-quic_neeraju@quicinc.comSigned-off-by: Will Deacon <will@kernel.org>