remove codes for other devices.
Implement lights.msm7x30.

The original library in stock rom seems not to support blink LEDs.
The library has /sys/class/leds/red/device/grpfreq as a symbol,
but kernel driver for LEDs does not supply its sysfs.

This new library supports LED blinking.
Use snprintf instead of sprintf.
Merge branch 'cm-9.1.0' into jellybean

Conflicts:
	device_p01d.mk