qcacld-3.0: Register spectral to DBR in hdd_wlan_start_modules

Since it will takes long time to register spectral to Direct Buffer RX
component, and it will affect wmi ready event handling in pdev open.
So register spectral to dbr after wmi ready event handled.

Change-Id: I51844a708ed69144618e5b0846747601d4d96a9d
CRs-Fixed: 2560822
3 files changed