MAINTAINERS: cpuidle: exynos: include header in file pattern

Include the platform data header in Exynos cpuidle maintainer entry.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 00836f6..ff3a64e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4621,6 +4621,7 @@
 S:	Supported
 F:	arch/arm/mach-exynos/pm.c
 F:	drivers/cpuidle/cpuidle-exynos.c
+F:	include/linux/platform_data/cpuidle-exynos.h
 
 CPUIDLE DRIVER - ARM PSCI
 M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>