MAINTAINERS: add soc/ux500

get_maintainer.pl only returns linux-kernel@vger.kernel.org for the
drivers/soc/ux500/ files - fix it by adding drivers/soc/ux500/ entry
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

MAINTAINERS

@@ -1968,6 +1968,7 @@ F:	Documentation/devicetree/bindings/i2c/i2c-stu300.txt
 F:	arch/arm/mach-nomadik/
 F:	arch/arm/mach-u300/
 F:	arch/arm/mach-ux500/
+F:	drivers/soc/ux500/
 F:	arch/arm/boot/dts/ste-*
 F:	drivers/clk/clk-nomadik.c
 F:	drivers/clk/clk-u300.c