ARM: OMAP4+: PRM: setup prm_features from the PRM init time flags

Currently some cpu_is_X checks are used to setup prm_features, however
the same can be accomplished by just passing these flags from the PRM
init data. This is done in preparation to make PRM a separate driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index a980d245..243133c 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -707,10 +707,10 @@
 {
 	omap_prm_base_init();
 
-	if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx())
+	if (data->flags & PRM_HAS_IO_WAKEUP)
 		prm_features |= PRM_HAS_IO_WAKEUP;
 
-	if (!soc_is_dra7xx())
+	if (data->flags & PRM_HAS_VOLTAGE)
 		prm_features |= PRM_HAS_VOLTAGE;
 
 	omap4_prminst_set_prm_dev_inst(data->device_inst_offset);