[ARM] Fix cats build

Fix more fallout from 894673ee6122a3ce1958e1fe096901ba5356a96b.

arch/arm/mach-footbridge/cats-hw.c: In function 'fixup_cats':
arch/arm/mach-footbridge/cats-hw.c:81: error: 'ORIG_VIDEO_LINES' undeclared (first use in this function)
...

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-footbridge/cats-hw.c

@@ -8,7 +8,7 @@
 #include <linux/ioport.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
 
 #include <asm/hardware/dec21285.h>
 #include <asm/io.h>