regulator: stpmic1: Use regulator mode definition from bindings

Get the regulator mode definition from the bindings header.
Signed-off-by: pascal paillet <p.paillet@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/stpmic1_regulator.c

@@ -12,6 +12,8 @@
 #include <linux/regulator/machine.h>
 #include <linux/regulator/of_regulator.h>
 
+#include <dt-bindings/mfd/st,stpmic1.h>
+
 /**
  * stpmic1 regulator description
  * @desc: regulator framework description
@@ -68,9 +70,6 @@ enum {
 /* Enable time worst case is 5000mV/(2250uV/uS) */
 #define PMIC_ENABLE_TIME_US 2200
 
-#define STPMIC1_BUCK_MODE_NORMAL 0
-#define STPMIC1_BUCK_MODE_LP BUCK_HPLP_ENABLE_MASK
-
 static const struct regulator_linear_range buck1_ranges[] = {
 	REGULATOR_LINEAR_RANGE(600000, 0, 30, 25000),
 	REGULATOR_LINEAR_RANGE(1350000, 31, 63, 0),