MAINTAINERS: Add co-maintainer for ARM/Qualcomm Support

Added myself as a co-maintainer.  Updated the files to include the
Qualcomm SoC directory.  Added linux-soc mailing list.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>

MAINTAINERS

@@ -1290,10 +1290,13 @@ S:	Maintained
 
 ARM/QUALCOMM SUPPORT
 M:	Kumar Gala <galak@codeaurora.org>
+M:	Andy Gross <agross@codeaurora.org>
 M:	David Brown <davidb@codeaurora.org>
 L:	linux-arm-msm@vger.kernel.org
+L:	linux-soc@vger.kernel.org
 S:	Maintained
 F:	arch/arm/mach-qcom/
+F:	drivers/soc/qcom/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom.git
 
 ARM/RADISYS ENP2611 MACHINE SUPPORT