Whitelist Broadcom Vulcan/Cavium ThunderX2 processors in
unmap_kernel_at_el0(). These CPUs are not vulnerable to
CVE-2017-5754 and do not need KPTI when KASLR is off.
Acked-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NJayachandran C <jnair@caviumnetworks.com>
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>