staging/easycap: replace if(false == var) with if (!var)

    's/(false == \([^ ]\+\))/(!\1)/g'

Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>