wl18xx: ignore irrelevant firmware version fields
wl18xx: ignore irrelevant firmware version fields

For wl18xx, only the chip ID and the minor version number are
relevant.  Ignore the other numbers which are either not used or
relate to internal projects or internal branches.

Signed-off-by: Luciano Coelho <d1ef580865f8eb2e1d1c65bc406aba322cc98f3e@ti.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas