power: supply: cpcap-charger: Fix charge voltage configuration

We have the charge voltage wrong, it should be 4.35V instead of 4.2V.
This will cause the battery to never get fully charged.

I noticed this when looking at the Andoid kernel battery and charger
status for a fully charged battery:

POWER_SUPPLY_VOLTAGE_NOW=4351000

Also the battery on droid 4 says "4.35, 1735/1785mAh (min/typ),
6.6/6.8 Wh (min/typ)". Presumably the 4.35 on the battery is the
charge voltage.

And finally, on Android the CPCAP CRM register is set to 0x03b5 where
the b is the charge voltage.

Let's fix the charge voltage define and update the charge configuration
to use the 4.35V setting.

Fixes: 0c9888e3c192 ("power: supply: cpcap-charger: Add minimal
CPCAP PMIC battery charger")
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

drivers/power/supply/cpcap-charger.c

@@ -76,7 +76,7 @@
 #define CPCAP_REG_CRM_VCHRG_4V30	CPCAP_REG_CRM_VCHRG(0x8)
 #define CPCAP_REG_CRM_VCHRG_4V32	CPCAP_REG_CRM_VCHRG(0x9)
 #define CPCAP_REG_CRM_VCHRG_4V34	CPCAP_REG_CRM_VCHRG(0xa)
-#define CPCAP_REG_CRM_VCHRG_4V36	CPCAP_REG_CRM_VCHRG(0xb)
+#define CPCAP_REG_CRM_VCHRG_4V35	CPCAP_REG_CRM_VCHRG(0xb)
 #define CPCAP_REG_CRM_VCHRG_4V38	CPCAP_REG_CRM_VCHRG(0xc)
 #define CPCAP_REG_CRM_VCHRG_4V40	CPCAP_REG_CRM_VCHRG(0xd)
 #define CPCAP_REG_CRM_VCHRG_4V42	CPCAP_REG_CRM_VCHRG(0xe)
@@ -433,7 +433,7 @@ static void cpcap_usb_detect(struct work_struct *work)
 			max_current = CPCAP_REG_CRM_ICHRG_0A528;
 
 		error = cpcap_charger_set_state(ddata,
-						CPCAP_REG_CRM_VCHRG_4V20,
+						CPCAP_REG_CRM_VCHRG_4V35,
 						max_current,
 						CPCAP_REG_CRM_TR_0A72);
 		if (error)