rtc: stmp3xxx: update contact email

The 'pengutronix' address is defunct for years. Use the proper contact
address.
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Link: https://lore.kernel.org/r/20200502142704.19308-1-wsa@kernel.orgSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-stmp3xxx.c

@@ -416,5 +416,5 @@ module_platform_driver(stmp3xxx_rtcdrv);
 
 MODULE_DESCRIPTION("STMP3xxx RTC Driver");
 MODULE_AUTHOR("dmitry pervushin <dpervushin@embeddedalley.com> and "
-		"Wolfram Sang <w.sang@pengutronix.de>");
+		"Wolfram Sang <kernel@pengutronix.de>");
 MODULE_LICENSE("GPL");