MAINTAINERS: add all files matching "imx" and "mxs" to the IMX entry

This way also the spi, i2c and other drivers are covered. There are some
x86 specific chips in media/i2c that include imx in their name which
don't have anything to do with the NXP platforms and so are explicitly
excluded.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

MAINTAINERS

@@ -1536,16 +1536,9 @@ R:	NXP Linux Team <linux-imx@nxp.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
-F:	arch/arm/mach-imx/
-F:	arch/arm/mach-mxs/
-F:	arch/arm/boot/dts/imx*
-F:	arch/arm/configs/imx*_defconfig
-F:	arch/arm64/boot/dts/freescale/imx*
-F:	drivers/clk/imx/
-F:	drivers/firmware/imx/
-F:	drivers/soc/imx/
-F:	include/linux/firmware/imx/
-F:	include/soc/imx/
+N:	imx
+N:	mxs
+X:	drivers/media/i2c/
 
 ARM/FREESCALE VYBRID ARM ARCHITECTURE
 M:	Shawn Guo <shawnguo@kernel.org>