devices: Promote zizhan to lineage-22.2

Change-Id: Ie926be69e4c0995c703cef2591a679593904c2e0

Author: ArianK16a

_data/devices/zizhan.yml

@@ -12,7 +12,7 @@ codename: zizhan
 cpu: Cortex-X2 & Cortex-A710 & Cortex-A510
 cpu_cores: '8'
 cpu_freq: 1 x 3.19 GHz + 3 x 2.75 GHz + 4 x 1.8 GHz
-current_branch: 21
+current_branch: 22.2
 dimensions: {depth: 5.4, height: 161.1, width: 144.7}
 download_boot: With the device powered off, hold <kbd>Volume Down</kbd> + <kbd>Power</kbd>. Keep holding both buttons until the word "FASTBOOT" appears on the screen, then release.
 gpu: Qualcomm Adreno 730
@@ -39,5 +39,5 @@ tree: android_device_xiaomi_zizhan
 type: foldable
 vendor: Xiaomi
 vendor_short: xiaomi
-versions: [21]
+versions: [21, 22.2]
 wifi: 802.11 a/b/g/n/ac/ax