i2c: Add LGE touchscreen changes

Signed-off-by: Rashed Abdel-Tawab <rashed@linux.com>
iommu: LG memory usage enhancements

Signed-off-by: Rashed Abdel-Tawab <rashed@linux.com>
led: Add support for emotional LED using pm8941

Signed-off-by: Rashed Abdel-Tawab <rashed@linux.com>