x86/tboot: Update maintainer list for Intel TXT

Update maintainer list for Intel TXT
Signed-off-by: Gang Wei <gang.wei@intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <IMCEAMAILTO-hpa+40zytor+2Ecom@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Joseph Cihula <joseph.cihula@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ning Sun <ning.sun@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard L Maliszewski <richard.l.maliszewski@intel.com>
Cc: Shane Wang <shane.wang@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: tboot-devel@lists.sourceforge.net <tboot-devel@lists.sourceforge.net>
Link: http://lkml.kernel.org/r/D0B11485C64D4B47B66902F8A4E901BE035656E6@shsmsx102.ccr.corp.intel.comSigned-off-by: Ingo Molnar <mingo@kernel.org>

MAINTAINERS

@@ -5621,9 +5621,7 @@ F:	Documentation/trace/intel_th.txt
 F:	drivers/hwtracing/intel_th/
 
 INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
-M:	Richard L Maliszewski <richard.l.maliszewski@intel.com>
-M:	Gang Wei <gang.wei@intel.com>
-M:	Shane Wang <shane.wang@intel.com>
+M:	Ning Sun <ning.sun@intel.com>
 L:	tboot-devel@lists.sourceforge.net
 W:	http://tboot.sourceforge.net
 T:	hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot