x86/sgx: Update MAINTAINERS

Add the maintainer information for the SGX subsystem.
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Jethro Beekman <jethro@fortanix.com>
Link: https://lkml.kernel.org/r/20201112220135.165028-25-jarkko@kernel.org

MAINTAINERS

@@ -9126,6 +9126,19 @@ F:	Documentation/x86/intel_txt.rst
 F:	arch/x86/kernel/tboot.c
 F:	include/linux/tboot.h
 
+INTEL SGX
+M:	Jarkko Sakkinen <jarkko@kernel.org>
+L:	linux-sgx@vger.kernel.org
+S:	Supported
+Q:	https://patchwork.kernel.org/project/intel-sgx/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-sgx.git
+F:	Documentation/x86/sgx.rst
+F:	arch/x86/entry/vdso/vsgx.S
+F:	arch/x86/include/uapi/asm/sgx.h
+F:	arch/x86/kernel/cpu/sgx/*
+F:	tools/testing/selftests/sgx/*
+K:	\bSGX_
+
 INTERCONNECT API
 M:	Georgi Djakov <georgi.djakov@linaro.org>
 L:	linux-pm@vger.kernel.org