History for barebox / arch / arm / mach-socfpga / include / mach / cyclone5-sdram.h

Prepare the SoCFPGA code base for different system types
(Arria10, Stratix10,...).

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>