deepin: config: x86_desktop_defconfig: enable landlock

deepin inclusion
category: feature

enable landlock for our x86 config, it has been enabled in our riscv, arm64
and loongarch config, enable it in x86, and it will be used in pacman.

Link: https://bbs.deepin.org.cn/post/295333
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
(cherry picked from commit 3646e67)
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>
(cherry picked from commit 89e96f3)
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>

Author: opsiff

arch/x86/configs/deepin_x86_desktop_defconfig

@@ -5798,6 +5798,7 @@ CONFIG_SECURITY_YAMA=y
 CONFIG_SECURITY_SAFESETID=y
 CONFIG_SECURITY_LOCKDOWN_LSM=y
 CONFIG_LOCK_DOWN_IN_EFI_SECURE_BOOT=y
+CONFIG_SECURITY_LANDLOCK=y
 CONFIG_INTEGRITY_SIGNATURE=y
 CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
 CONFIG_INTEGRITY_PLATFORM_KEYRING=y