ARM and HT profiles are different set of profiles and you can be using different combination of them on different occasions.
Based on the testing, it seems to be that, its an "AND" operation between both configuration. Even if one of them has 80 MHz channel turned off, the bssid will show that 80MHz is turned off.
ARM - 80 MHZ disabled, HT profile - 80 MHz enabled
(Master-UP) (config) #show ap bss-table
fm (forward mode): T-Tunnel, S-Split, D-Decrypt Tunnel, B-Bridge (s-standard, p-persistent, b-backup, a-always), n-anyspot
Aruba AP BSS Table
------------------
bss ess port ip phy type ch/EIRP/max-EIRP cur-cl ap name in-t(s) tot-t mtu acl-state acl fm
--- --- ---- -- --- ---- ---------------- ------ ------- ------- ----- --- --------- --- --
18:64:72:19:75:40 empire1 N/A 10.20.25.42 g-HT ap 11/21.5/21.5 0 18:64:72:c9:97:54 0 48m:55s 1500 - 2 Bs
18:64:72:19:75:50 empire1 N/A 10.20.25.42 a-VHT ap 157+/22.5/22.5 0 18:64:72:c9:97:54 0 48m:43s 1500 - 2 Bs
Channel followed by "*" indicates channel selected due to unsupported configured channel.
"Spectrum" followed by "^" indicates Local Spectrum Override in effect.
Num APs:2
Num Associations:0
ARM - 80 MHZ enabled, HT profile - 80 MHz enabled
(Master-UP) (config) #show ap bss-table
fm (forward mode): T-Tunnel, S-Split, D-Decrypt Tunnel, B-Bridge (s-standard, p-persistent, b-backup, a-always), n-anyspot
Aruba AP BSS Table
------------------
bss ess port ip phy type ch/EIRP/max-EIRP cur-cl ap name in-t(s) tot-t mtu acl-state acl fm
--- --- ---- -- --- ---- ---------------- ------ ------- ------- ----- --- --------- --- --
18:64:72:19:75:40 empire1 N/A 10.20.25.42 g-HT ap 11/21.5/21.5 0 18:64:72:c9:97:54 0 51m:24s 1500 - 2 Bs
18:64:72:19:75:50 empire1 N/A 10.20.25.42 a-VHT ap 149E/22.5/22.5 0 18:64:72:c9:97:54 0 51m:12s 1500 - 2 Bs
Channel followed by "*" indicates channel selected due to unsupported configured channel.
"Spectrum" followed by "^" indicates Local Spectrum Override in effect.
Num APs:2
Num Associations:0
ARM - 80 MHZ enabled, HT profile - 80 MHz disabled
(Master-UP) (config) #show ap bss-table
fm (forward mode): T-Tunnel, S-Split, D-Decrypt Tunnel, B-Bridge (s-standard, p-persistent, b-backup, a-always), n-anyspot
Aruba AP BSS Table
------------------
bss ess port ip phy type ch/EIRP/max-EIRP cur-cl ap name in-t(s) tot-t mtu acl-state acl fm
--- --- ---- -- --- ---- ---------------- ------ ------- ------- ----- --- --------- --- --
18:64:72:19:75:40 empire1 N/A 10.20.25.42 g-HT ap 11/21.5/21.5 0 18:64:72:c9:97:54 0 53m:47s 1500 - 2 Bs
18:64:72:19:75:50 empire1 N/A 10.20.25.42 a-VHT ap 149+/22.5/22.5 0 18:64:72:c9:97:54 0 53m:35s 1500 - 2 Bs
Channel followed by "*" indicates channel selected due to unsupported configured channel.
"Spectrum" followed by "^" indicates Local Spectrum Override in effect.
Num APs:2
Num Associations:0
(Master-UP) (config) #