Your line RTCCFG = %10000100 isn't enabling the RTCC module ...
The RTCWREN bit must be set before you can set the Enable bit (RTCCFG.7).

Code:
	EECON2 = $55
	EECON2 = $AA    ; Unlock
	RTCCFG.5 = 1    ; Enable Writes
	RTCCFG.7 = 1    ; Enable RTCC module
	EECON2 = $55
	EECON2 = $AA
	RTCCFG.5 = 0    ; Disable Writes