MAINTAINERS: Add Dave Hansen to the x86 maintainer team

[Thomas Gleixner]

Dave is already listed as x86/mm maintainer, has a profund knowledge of
the x86 architecture in general and a good taste in terms of kernel
programming in general.

Add him as a full x86 maintainer with all rights and duties.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
 MAINTAINERS |    1 +
 1 file changed, 1 insertion(+)

--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20336,6 +20336,7 @@ X86 ARCHITECTURE (32-BIT AND 64-BIT)
 M:	Thomas Gleixner <tglx@xxxxxxxxxxxxx>
 M:	Ingo Molnar <mingo@xxxxxxxxxx>
 M:	Borislav Petkov <bp@xxxxxxxxx>
+M:	Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
 M:	x86@xxxxxxxxxx
 R:	"H. Peter Anvin" <hpa@xxxxxxxxx>
 L:	linux-kernel@xxxxxxxxxxxxxxx