Notification LED duration mod (& Kernel v1.8 config)

Added entry in menuconfig to optionally add the mod to the kernel compile.

Use sysfs interface to change behaviour :

 * /sys/kernel/notification_leds/off_timer_multiplier (rw)
 *
 *   0 - Notification LED will blink forever until cleared by user
 *   1 - Notification LED will blink as requested by app or until cleared by user (default)
 *   2 to 255 - Notification LED will blink as requested by app multiplied by value or until cleared by user

NB: The output of the sysfs file (e.g. if you 'cat' it) will be clear text.
Notification LED duration mod (& Kernel v1.8 config)

Added entry in menuconfig to optionally add the mod to the kernel compile.

Use sysfs interface to change behaviour :

 * /sys/kernel/notification_leds/off_timer_multiplier (rw)
 *
 *   0 - Notification LED will blink forever until cleared by user
 *   1 - Notification LED will blink as requested by app or until cleared by user (default)
 *   2 to 255 - Notification LED will blink as requested by app multiplied by value or until cleared by user

NB: The output of the sysfs file (e.g. if you 'cat' it) will be clear text.

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Added a check that only values between 0 and 255 allowed to be set.
drivers/leds: corrected wake_lock in led driver (Sultan)