staging/media/davinci_vpfe/vpfe_video.h Unnecessary space after function pointer name

Fix checkpatch.pl issues with Unnecessary space after function pointer
name in vpfe_video.h

Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>