radio: RTC6226: add support to power on/off rtc6226 chip

add support to power on/off rtc6226 chip and enable
VIDIOC_DQBUF ioctl functionality.

Change-Id: If716b155e912643a0443e33c93310e074c8bca13
Signed-off-by: himta ram <hram@codeaurora.org>
7 files changed