RTC6226: extend the seek timeout to 15 sec

Seek time out is set to 7 sec and when lower Channel Spacing
is configured. RTC6226 chip is taking more then 7 sec to scan
the whole band range.
Set the seek timeout to 15 sec so that scan can be performed
within the seek timeout value.
Set the Tune time out value to 3 sec.

CRs-Fixed: 2744390
Change-Id: Id79f21aaac049b78ec22b8f90c533deac4bc448b
Signed-off-by: himta ram <hram@codeaurora.org>