qcacmn: Control the size of the freq and chan_num (QDF)

Depending on the requirement, a bigger size or a smaller size for
the frequency variable can be chosen. The advantages of each size
are described below:

Advantage of a bigger size:
When two technologies (e.g. 802.11AX and 802.11AD) are controlled
by the same driver software, the frequency range may be very large
and a bigger size (e.g. 32bit integer) is more appropriate.

Advantage of a smaller size:
When the frequency range is not very large, a smaller size
(e.g. 16bit integer) can be used. It saves a large amount of space
especially when many large arrays containing elements of this
type/size are defined in the driver.

Change-Id: I6c8fb2a4dc117e2535ef96009362923557cee398
CRs-Fixed: 2570456
1 file changed