qcacld-3.0: Refine csr_dump_connection_stats() with more info

Add following changes to refine csr_dump_connection_stats:
1. Remove unused argument and rename the function to reduce the
number of characters used.
2. Add self mac address information.
3. Rename Auth type to AKM. Print the AKM string instead of
existing diag auth type enum as it doesn't include new WPA3 and
FILS related AKM.
4. Print channel and channel bandwidth on the same line.

New format of log:
csr_connect_info: 3692: +---------CONNECTION INFO START------------+
csr_connect_info: 3692: VDEV-ID: 0 self_mac:18:23:73:36:23:0f
csr_connect_info: 3692: ssid: FILS_AP
csr_connect_info: 3692: bssid: c8:b3:73:36:a3:0f
csr_connect_info: 3692: rssi: -25 dBm
csr_connect_info: 3693: channel: 6 channel_bw: BW_20MHZ
csr_connect_info: 3695: dot11Mode: DOT11_MODE_11N
csr_connect_info: 3700: AKM: FILS-SHA384
csr_connect_info: 3701: Encry-type: ENC_MODE_OPEN
csr_connect_info: 3702: channel frequency: 5745
csr_connect_info: 3703: Qos enable: 1 | Associated: yes
csr_connect_info: 3704: +---------CONNECTION INFO END------------+

Change-Id: Ia87357dd607bfa0d9256c8129bf8e4448ae93104
CRs-Fixed: 2614465