mfd: twl: define all feature flags in one place.

twl-regulator has a collection of feature flags, some defined
in twl-core.c and  one defined in i2c/twl.h.
This is confusing for anyone adding a new feature flag.

So collect them together and place them in twl.h immediately
after the structure in which they are initially set.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index 2463b61..18fc937 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -171,8 +171,6 @@
 TWL_CLASS_IS(4030, TWL4030_CLASS_ID)
 TWL_CLASS_IS(6030, TWL6030_CLASS_ID)
 
-#define TWL6025_SUBCLASS	BIT(4)  /* TWL6025 has changed registers */
-
 /*
  * Read and write single 8-bit registers
  */
@@ -758,6 +756,12 @@
 	void		*data;
 	unsigned long	features;
 };
+/* chip-specific feature flags, for twl_regulator_driver_data.features */
+#define TWL4030_VAUX2		BIT(0)	/* pre-5030 voltage ranges */
+#define TPS_SUBSET		BIT(1)	/* tps659[23]0 have fewer LDOs */
+#define TWL5031			BIT(2)  /* twl5031 has different registers */
+#define TWL6030_CLASS		BIT(3)	/* TWL6030 class */
+#define TWL6025_SUBCLASS	BIT(4)  /* TWL6025 has changed registers */
 
 /*----------------------------------------------------------------------*/