[PATCH 3.16.y-ckt 001/126] iio: lpc32xx_adc: fix warnings caused by enabling unprepared clock

3.16.7-ckt22 -stable review patch. If anyone has any objections, please let me know. -- From: Vladimir Zapolskiy commit 01bb70ae0b98d266fa3e860482c7ce22fa482a6e upstream. If common clock framework is configured, the driver generates a warning, which is fixed by this change:

[PATCH 3.16.y-ckt 001/126] iio: lpc32xx_adc: fix warnings caused by enabling unprepared clock

3.16.7-ckt22 -stable review patch. If anyone has any objections, please let me know. -- From: Vladimir Zapolskiy commit 01bb70ae0b98d266fa3e860482c7ce22fa482a6e upstream. If common clock framework is configured, the driver generates a warning, which is fixed