config: Disable EFI_FAKE_MEMMAP support for arm64 by default

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7F3NP


CVE: NA

--------------------------------

EFI_FAKE_MEMMAP is used specific memory range by updating original
(firmware provided) EFI memmap. This can only be used for debug
propose. Disable it by default.

Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
(cherry picked from commit 13ecd6fc)