MAINTAINERS: power: supply: use Krzysztof Kozlowski's Canonical address

Switch to Canonical address in S3C power supply driver, just like in
other entries.

Cc: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

MAINTAINERS

@@ -16018,7 +16018,7 @@ W:	http://www.ibm.com/developerworks/linux/linux390/
 F:	drivers/s390/scsi/zfcp_*
 
 S3C ADC BATTERY DRIVER
-M:	Krzysztof Kozlowski <krzk@kernel.org>
+M:	Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
 L:	linux-samsung-soc@vger.kernel.org
 S:	Odd Fixes
 F:	drivers/power/supply/s3c_adc_battery.c