MAINTAINERS: fix Colibri PXA270 file pattern

The original commit 403d2971 ("pxa/income: Add Income SBC support")
started with the wrong file pattern.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -710,8 +710,7 @@ ARM/INCOME PXA270 SUPPORT
 M:	Marek Vasut <marek.vasut@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-F:	arch/arm/mach-pxa/income.c
-F:	arch/arm/mach-pxa/include/mach-pxa/income.h
+F:	arch/arm/mach-pxa/colibri-pxa270-income.c
 
 ARM/INTEL IOP32X ARM ARCHITECTURE
 M:	Lennert Buytenhek <kernel@wantstofly.org>