power: supply: bq25890: fix BAT_COMP field definition

According to datasheet, BAT_COMP field spans bits 5-7. The rest of the
code seems to assume this already.

Fixes: 4aeae9cb0dad ("power_supply: Add support for TI BQ25890 charger chip")
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c
index 70b90db..3f6fb49 100644
--- a/drivers/power/supply/bq25890_charger.c
+++ b/drivers/power/supply/bq25890_charger.c
@@ -183,7 +183,7 @@ static const struct reg_field bq25890_reg_fields[] = {
 	[F_CHG_TMR]		= REG_FIELD(0x07, 1, 2),
 	[F_JEITA_ISET]		= REG_FIELD(0x07, 0, 0),
 	/* REG08 */
-	[F_BATCMP]		= REG_FIELD(0x08, 6, 7), // 5-7 on BQ25896
+	[F_BATCMP]		= REG_FIELD(0x08, 5, 7),
 	[F_VCLAMP]		= REG_FIELD(0x08, 2, 4),
 	[F_TREG]		= REG_FIELD(0x08, 0, 1),
 	/* REG09 */