arm/imx2x: removes a bunch of sparse-warnings

Here are some of the warnings that get fixed by this:

> 200 times: warning: cast adds address space to expression (<asn:2>)
twelve times: warning: symbol 'xxx' was not declared. Should it be static
two times: warning: symbol 'clock' shadows an earlier one
five times: warning: incorrect type in initializer (different address spaces)

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx2/generic.c b/arch/arm/mach-mx2/generic.c
index dea6521..bd51dd0 100644
--- a/arch/arm/mach-mx2/generic.c
+++ b/arch/arm/mach-mx2/generic.c
@@ -21,6 +21,7 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <mach/hardware.h>
+#include <mach/common.h>
 #include <asm/pgtable.h>
 #include <asm/mach/map.h>