linux-firmware: wl12xx- New STA&AP FW support WL128x + Update STA&AP FW for wl127x

New FW support for WL128x chip:
  STA FW version 7.1.3.50.58
  AP FW version 7.2.0.0.47

Update STA FW for WL127x chip:
  STA FW version 6.1.3.50.58
  AP FW version 6.2.0.0.47

Example NVS files for WL127x and WL128x

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