ARM: s3c24xx: demote kerneldoc comment

Remove kerneldoc annotation to fix warning:

    arch/arm/mach-s3c24xx/mach-h1940.c:185: warning:
        cannot understand function prototype: 'struct s3c2410fb_display h1940_lcd __initdata = '

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>