MAINTAINERS: Add Andy and Darren as arch/x86/platform/ reviewers

... so that they can get CCed on platform patches.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: x86@kernel.org
Link: https://lkml.kernel.org/r/20190128113619.19025-1-bp@alien8.de

MAINTAINERS

@@ -16631,6 +16631,15 @@ S:	Maintained
 F:	drivers/platform/x86/
 F:	drivers/platform/olpc/
 
+X86 PLATFORM DRIVERS - ARCH
+R:	Darren Hart <dvhart@infradead.org>
+R:	Andy Shevchenko <andy@infradead.org>
+L:	platform-driver-x86@vger.kernel.org
+L:	x86@kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
+S:	Maintained
+F:	arch/x86/platform
+
 X86 VDSO
 M:	Andy Lutomirski <luto@kernel.org>
 L:	linux-kernel@vger.kernel.org