bq25710: Add PP_IDCHG2 definition
This adds the register field definition for PP_IDCHG2.
BRANCH=none
TEST=buildall passes
#define BQ25720_CHARGE_OPTION_4_IDCHG_TH2__1P25 0
#define BQ25720_CHARGE_OPTION_4_IDCHG_TH2__1P5 1
+#define BQ25720_CHARGE_OPTION_4_PP_IDCHG2_SHIFT 2
+#define BQ25720_CHARGE_OPTION_4_PP_IDCHG2_BITS 1
+#define BQ25720_CHARGE_OPTION_4_PP_IDCHG2__DISABLE 0
+#define BQ25720_CHARGE_OPTION_4_PP_IDCHG2__ENABLE 1
+
/*
* Vmin Active Protection Register (0x37)
*/
