marvell: drivers: correct RTC init sequence

It turned out that resetting the RTC time register is not
necessary during initial configuration. Safely remove it
from the sequence.

Change-Id: Id2b9c7db44a8c8dbe88a7f8a21695b72a7fd78ee
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Nadav Haklai <nadavh@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>

drivers/marvell/mochi/cp110_setup.c

@@ -341,10 +341,6 @@ static void cp110_rtc_init(uintptr_t base)
 		mmio_write_32(base + MVEBU_RTC_TEST_CONFIG_REG, 0);
 		mdelay(500);
 
-		/* Reset Time register */
-		mmio_write_32(base + MVEBU_RTC_TIME_REG, 0);
-		udelay(62);
-
 		/* Reset Status register */
 		mmio_write_32(base + MVEBU_RTC_STATUS_REG,
 			      (MVEBU_RTC_STATUS_ALARM1_MASK |
@@ -361,10 +357,6 @@ static void cp110_rtc_init(uintptr_t base)
 		mmio_write_32(base + MVEBU_RTC_CCR_REG,
 			      MVEBU_RTC_NOMINAL_TIMING);
 
-		/* Reset Time register */
-		mmio_write_32(base + MVEBU_RTC_TIME_REG, 0);
-		udelay(10);
-
 		/* Reset Status register */
 		mmio_write_32(base + MVEBU_RTC_STATUS_REG,
 			      (MVEBU_RTC_STATUS_ALARM1_MASK |