wl12xx: Import firmware & ini files from ol_R5.SP5.01

This brings us up-to-date with TI ol_R5.SP5.01 release
and eliminates the need for device specific firmware in device/vendor trees

Current firmware:
SR: X.3.10.0.136 MR: X.5.7.0.46

Original files from:
https://github.com/TI-OpenLink/ti-utils/commits/ol_R5.SP5.01

Change-Id: Ie8917768212c2eb5330127fb7d498c0499d7cc8d
Signed-off-by: Michael Bestas <mikeioannina@gmail.com>