warnings as errors
board sc3: fix warning about nested comment

cc: Heiko Schocher <hs@denx.de>
amba: remove this video driver since it is not used
tegra: remove unused cursor functions
mpc8xx, lcd: move the mpc8xx lcd driver to drivers/video

Since the lcd code was compiled unconditionally also add
CONFIG_MPC8XX_LCD to the boards using this lcd driver.
lcd, lpxfb: move the lpcfb to drivers/video

Since the lcd code was compiled unconditionally also add
CONFIG_PXA_LCD to the boards using this framebuffer.
common/lcd.c: cleanup use of global variables

console_col, console_row, lcd_line_length, lcd_console_address had
to be declared in board / driver specific code, but were not actually
used there. Get rid of the global variables.
common/lcd.c: remove global lcd_base
common/lcd: clean up a bit

This patch
 - Make the brackets of the function call a bit more consistent
 - Remove really unnessary brackets.
 - Removes the extern from the function definitions
 - Remove curtly brackets from single line statements
 - Remove lcd_setmem proto since it is already in common.h
 - Don't init globals to 0
mcc200, ...., : remove proto already in lcd.h and unused code
api/api_diplay: use the getters for console size info
common/lcd.c: move the macro's to the c file
pwoerpc has aliasing problems at the moment..