Since commit 0365ffcc (generic-board: show model name in
board_init_f() too), the support card information has not been
displayed because check_support_card() is invoked only when
show_board_info() fails to get the model name from Device Tree.

This commit adds misc_init_f() function to call check_support_card()
from there.

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