fbearlysuspend: Add early suspend delay to userspace

Manual patched from Curtis Menard <curtis.menard@gmail.com>

Configurable delay via /sys/power/fb_pause. Value of 0 disabled max value of 500ms.
Note:  A value of 50ms makes CRT off animation work very well on Note 2.
Signed-off-by: Curtis Menard <curtis.menard@gmail.com>