d/patches: wifi: Disable FT and WPA-PSK-SHA256 in AP mode

Otherwise no clients get authenticated on brcmfmac in hotspot mode.

See Librem5/linux#452 (closed)

debian/patches/pureos/wifi-Disable-WPA-PSK-SHA256-in-AP-mode.patch

+From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
+Date: Sat, 21 Jan 2023 02:26:19 +0100
+Subject: wifi: Disable WPA-PSK-SHA256 in AP mode
+
+brcmfmac has troubles with it.
+---
+ src/core/supplicant/nm-supplicant-config.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/core/supplicant/nm-supplicant-config.c b/src/core/supplicant/nm-supplicant-config.c
+index 2a21d69..6b78ab6 100644
+--- a/src/core/supplicant/nm-supplicant-config.c
++++ b/src/core/supplicant/nm-supplicant-config.c
+@@ -846,7 +846,7 @@ nm_supplicant_config_add_setting_wireless_security(NMSupplicantConfig *
+     key_mgmt      = nm_setting_wireless_security_get_key_mgmt(setting);
+     key_mgmt_conf = g_string_new(key_mgmt);
+     if (nm_streq(key_mgmt, "wpa-psk")) {
+-        if (_get_capability(priv, NM_SUPPL_CAP_TYPE_PMF))
++        if (!is_ap && _get_capability(priv, NM_SUPPL_CAP_TYPE_PMF))
+             g_string_append(key_mgmt_conf, " wpa-psk-sha256");
+         if (!is_ap && _get_capability(priv, NM_SUPPL_CAP_TYPE_FT))
+             g_string_append(key_mgmt_conf, " ft-psk");