ARM: dts: am33xx: update rtc-node compatible property

ARM: dts: am33xx: update rtc-node compatible property

Enable am33xx specific RTC features (e.g. PMIC control) by adding
"ti,am3352-rtc" to the compatible property of the rtc node.

Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: Felipe Balbi <[email protected]>
Tested-by: Felipe Balbi <[email protected]>
Cc: Alessandro Zummo <[email protected]>
Cc: Tony Lindgren <[email protected]>
Cc: Benot Cousson <[email protected]>
Cc: Lokesh Vutla <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Sekhar Nori <[email protected]>
Cc: Tero Kristo <[email protected]>
Cc: Keerthy J <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>