Remove unused lcd_mono_data
Replace a loop in partial update function by asm lcd_write_data()
Remove a variable only used in this loop (x) and rename x0 to x
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22888 a1c6a512-1295-4272-9138-f99709370657
Demo plugins run fine, mpegplayer data aborts for yet unknown reasons
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22876 a1c6a512-1295-4272-9138-f99709370657