sparc64: Use generic BQ4802 RTC driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index e0d783b..a4ec899 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -22,6 +22,7 @@
 	select RTC_CLASS
 	select RTC_DRV_M48T59
 	select RTC_DRV_CMOS
+	select RTC_DRV_BQ4802
 
 config GENERIC_TIME
 	bool