i.MX27 family: Add the Phytec PCM970 evaluation board

The Phytec phyCORE-i.MX27 CPU module is delivered with the PCM970
baseboard by default. This patch adds support for the hardware.

This code is only an empty stub; it is filled up with functionality
in a later patch series.

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>

diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile
index f8d3836..382d860 100644
--- a/arch/arm/mach-mx2/Makefile
+++ b/arch/arm/mach-mx2/Makefile
@@ -11,3 +11,4 @@
 
 obj-$(CONFIG_MACH_MX27ADS) += mx27ads.o
 obj-$(CONFIG_MACH_PCM038) += pcm038.o
+obj-$(CONFIG_MACH_PCM970_BASEBOARD) += pcm970-baseboard.o