BACKPORT: cfg80211: Squash of all 6GHz changes

Add support for Wi-Fi 6GHz band. squash of commits listed below.

ad8b601 BACKPORT: cfg80211: express channels with a KHz component
666ce0c BACKPORT: cfg80211: fix 6 GHz frequencies to kHz
a4d60a7 BACKPORT: cfg80211: adapt to new channelization of the 6GHz band
2ed68ba BACKPORT: cfg80211: add a helper to identify 6 GHz PSCs
6f5ad8f BACKPORT: ieee80211: add code to obtain and parse 6 GHz operation field
e66b8b1c BACKPORT: ieee80211: add HE ext EIDs and 6 GHz capability defines
bc79097 BACKPORT: cfg80211: handle 6 GHz capability of new station
e3a7357 BACKPORT: cfg80211: add and expose HE 6 GHz band capabilities
b8318c9 BACKPORT: mac80211: add HE 6 GHz Band Capability element
df67878 BACKPORT: mac80211: Add HE 6GHz capabilities element to probe request
0403f9c BACKPORT: cfg80211: treat 6 GHz channels as valid regardless of capability
92a570f BACKPORT: cfg80211: reject HT/VHT capabilities on 6 GHz band
dd5425c BACKPORT: cfg80211: require HE capabilities for 6 GHz band

CRs-Fixed: 2760276
Change-Id: Icecbe2587aba927dcb83bc4a574249dbe408d311
Signed-off-by: Vamsi Krishna <vamsin@codeaurora.org>
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
Git-commit: 934f4c7dd3a544bb8000f7436f1f0e12e04ebc37
Git-commit: 5e9cf0f0a3e98992184442de24253fe1b9c40f2e
Git-commit: d1a1646c0de7b0083d42a1ada72a3ec243bfcc6d
Git-commit: afbc9c9e8bfe71e8bd12a8c01bedd969fbab8f0e
Git-commit: 821273a5a502eebaae005557907d122d1e9b7b98
Git-commit: 8b30808d9be4183fab17f0b0e68eea88c94ff15a
Git-commit: 43e64bf301fd8c54f0082d91c6ffd4de861baf96
Git-commit: 223952177296c34d9c8de9cde33204caffe55725
Git-commit: 24a2042cb22fdfc7feef0df9622f0d9d71b8ced1
Git-commit: 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77
Git-commit: ba8f6a037f790147438173029799f54c9d3065f2
Git-commit: 461ce35d5535c1479384f67fcf4bfc3f3610edca
Git-commit: f438136528482f98535889c9a6f99bbacdd92870
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git


Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>