x86/EFI: don't apply relocations to l{2,3}_bootmap

x86/EFI: don't apply relocations to l{2,3}_bootmap

Other than claimed in commit 2ce5963727's ("x86: construct the
{l2,l3}_bootmap at compile time") the initialization of the two page
tables doesn't take care of everything without furher adjustment: The
compile time initialization obviously requires base relocations, and
those get processed after efi_arch_memory_setup(). Hence without
additional care the correctly initialized values may then get wrongly
"adjusted" again. Except the two table from being subject to base
relocation.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper@citrix.com>