x86 setup: MAINTAINERS: formally take responsibility for the i386 boot code

Change MAINTAINERS to formally take responsibility for the i386 boot code.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -1750,8 +1750,8 @@ T:	http://www.harbaum.org/till/i2c_tiny_usb
 S:	Maintained
 
 i386 BOOT CODE
-P:	Riley H. Williams
-M:	Riley@Williams.Name
+P:	H. Peter Anvin
+M:	hpa@zytor.com
 L:	Linux-Kernel@vger.kernel.org
 S:	Maintained