x86/efi: Drop EFI stub .bss from .data section

commit 5f51c5d0 upstream.

Now that the EFI stub always zero inits its BSS section upon entry,
there is no longer a need to place the BSS symbols carried by the stub
into the .data section.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230912090051.4014114-18-ardb@google.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>