rtc: improve WA for RTC incorrect read

	- Improved WA for RTC read failure
	- According to FE-3124064:
	- Description:
	    The device supports CPU write and read access to the RTC Time register.
	    However, due to this erratum, Read from RTC TIME register may fail.
	    RTC TIME register should be read 100 times, return a the value which appears
	    most frequently as a proper value.

Change-Id: I05b20d633220bb8043f176fbb7d3c68c671b368a
Signed-off-by: Shaker Daibes <shaker@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/24986
Tested-by: Star_Automation <star@marvell.com>
Reviewed-by: Ofer Heifetz <oferh@marvell.com>
1 file changed