uboot-phytec

ARM: UniPhier: move SPL init functions to spl_board_init()

Now init functions called from board_postclk_init() and dram_init()
are only necessary for SPL.
Move them to spl_board_init() for clean-up.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>