qcacmn: Set ap_pwr_type only for a 6 GHz pdev
reg_set_ap_pwr_type() API is invoked per pdev and the default ap power type
is set for all bands of the pdev (2.4 GHz / 5 GHz/ 6 GHz). Hence, the
user space command g_ap_power_type retrieves SP Power mode for 2.4 GHz
and 5 GHz pdev in outdoor deployment mode.
Since power type is valid only for a 6 GHz pdev, check if the chip
supports 6 GHz channel range and set the power type.
CRs-Fixed: 3459316
Change-Id: Ib5038d5d019ab9ffaa6a607916e5187ecdbd4e2b