ARM: OMAP2+: CM: move SoC specific init calls within a generic API

This gets rid of need for some exported driver APIs, and simplifies the
initialization of the CM driver. Done in preparation to make CM a
separate driver. The init data is now also passed to the SoC specific
implementations, allowing future expansion to add feature flags etc.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

arch/arm/mach-omap2/cm2xxx.c

@@ -393,9 +393,8 @@ static struct cm_ll_data omap2xxx_cm_ll_data = {
 	.wait_module_ready	= &omap2xxx_cm_wait_module_ready,
 };
 
-int __init omap2xxx_cm_init(void)
+int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data)
 {
-	omap2_cm_base_init();
 	return cm_register(&omap2xxx_cm_ll_data);
 }