video: s3c2410: remove unused variable

Fixes:

drivers/video/s3c2410fb.c: In function 's3c2410fb_cpufreq_transition':
drivers/video/s3c2410fb.c:770:24: warning: unused variable 'freqs'

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>