ACPI / battery: Cleanup Lenovo Ideapad Miix 320 DMI table entry

The Lenovo Ideapad Miix 320 bat_dmi_table entry is using weird indentation
and is the only entry which (unnecessarily) uses DMI_EXACT_MATCH instead
of DMI_MATCH, fixup both to make the entry consistent with the others.

While at it also update the comments for battery_do_not_check_pmic_quirk
entries, adding a bit of text explaining why the quirk is necessary.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/battery.c

@@ -1365,19 +1365,19 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = {
 		},
 	},
 	{
-		/* ECS EF20EA */
+		/* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
 		.callback = battery_do_not_check_pmic_quirk,
 		.matches = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
 		},
 	},
 	{
-		/* Lenovo Ideapad Miix 320 */
+		/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
 		.callback = battery_do_not_check_pmic_quirk,
 		.matches = {
-		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
-		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "80XF"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
 		},
 	},
 	{},