UPSTREAM: wifi: nl80211: fix puncturing bitmap policy

This was meant to be a u32, and while applying the patch
I tried to use policy validation for it. However, not only
did I copy/paste it to u8 instead of u32, but also used
the policy range erroneously. Fix both of these issues.

Bug: 254441685
Fixes: d7c1a9a0 ("wifi: nl80211: validate and configure puncturing bitmap")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
(cherry picked from commit b27f07c5)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I402096a05374242a91a9dc8c2a312e319e576d57