bq25710: add IADP_GAIN configuration
BRANCH=none
TEST=make -j BOARD=gimble
#define BQ25710_CHARGE_OPTION_0_LOW_POWER_MODE BIT(15)
#define BQ25710_CHARGE_OPTION_0_IDPM_AUTO_DIS BIT(12)
#define BQ25710_CHARGE_OPTION_0_EN_LEARN BIT(5)
+#define BQ25710_CHARGE_OPTION_0_IADP_GAIN BIT(4)
#define BQ25710_CHARGE_OPTION_0_EN_IDPM BIT(1)
#define BQ25710_CHARGE_OPTION_0_CHRG_INHIBIT BIT(0)
