linux-firmware: wl12xx: Updated STA & AP FW for wl12xx-fw-3

linux-firmware: wl12xx: Updated STA & AP FW for wl12xx-fw-3

The new wl12xx fw (ver 7.3.0.0.77) had some major api changes.
The main change was the addition of multi-role concept.
For each chip there are two FW kind:
1) A single FW for both STA and AP roles
2) PLT FW that support calibration process

Update FW for WL128x chip to  7.3.0.0.77:
  STA & AP FW version
  PLT FW version

Update FW for WL127x chip 6.3.0.0.77:
  STA & AP FW version
  PLT FW version

Create a soft symbolic link wl12xx-nvs.bin that link to one of
the examples NVF files (by default wl127x)

Signed-off-by: Shahar Levi <shahar_levi@ti.com>