TRATS: initialize panel_info data structure in board file

TRATS: initialize panel_info data structure in board file

panel_info data structure is gloable variable, so, I have initialized it
in board file. If it is initialized in init_panel_info() like existing,
it can't be used in drv_lcd_init() in common/lcd.c because
init_panel_info() is called after drv_lcd_init().

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>