maintainers: add MAINTAINERS entry for FG-KASLR

Add an entry for FG-KASLR containing the maintainers, reviewers,
public mailing lists, files and so on.

Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>

MAINTAINERS

@@ -7637,6 +7637,18 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/fujitsu-tablet.c
 
+FUNCTION-GRAINED KASLR (FG-KASLR)
+M:	Alexander Lobakin <alexandr.lobakin@intel.com>
+R:	Kristen Carlson Accardi <kristen@linux.intel.com>
+R:	Kees Cook <keescook@chromium.org>
+L:	linux-hardening@vger.kernel.org
+S:	Supported
+F:	Documentation/security/fgkaslr.rst
+F:	arch/x86/boot/compressed/fgkaslr.c
+F:	arch/x86/boot/compressed/utils.c
+F:	arch/x86/boot/compressed/vmlinux.symbols
+F:	scripts/generate_text_sections.pl
+
 FUSE: FILESYSTEM IN USERSPACE
 M:	Miklos Szeredi <miklos@szeredi.hu>
 L:	linux-fsdevel@vger.kernel.org