wiki: Promote vayu to 20

Change-Id: I247c3e7c2ccba11d004c2549db59c29c6ff3f2e7

_data/devices/vayu.yml

@@ -1,6 +1,6 @@
 architecture: arm64
 battery: {capacity: 5160, removable: False, tech: 'Li-Po'}
-before_install: {instructions: 'needs_specific_android_fw', version: '12'}
+before_install: {instructions: 'needs_specific_android_fw', version: '13'}
 bluetooth: {profiles: [A2DP + aptX HD], spec: '5'}
 cameras:
   - {flash: 'LED', info: '48 MP'}
@@ -12,14 +12,14 @@ codename: vayu
 cpu: Kryo 485
 cpu_cores: '8'
 cpu_freq: 1 x 2.96 GHz + 3 x 2.42 GHz + 4 x 1.78 GHz
-current_branch: 19.1
+current_branch: 20
 dimensions: {depth: 9.4, height: 165.8, width: 76.8}
 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 640
 has_recovery_partition: true
 image: vayu.png
 install_method: fastboot_xiaomi
-kernel: android_kernel_xiaomi_sm8150
+kernel: android_kernel_xiaomi_vayu
 maintainers: [SebaUbuntu]
 models: [M2102J20SG, M2102J20SI]
 name: POCO X3 Pro
@@ -37,5 +37,5 @@ tree: android_device_xiaomi_vayu
 type: phone
 vendor: Xiaomi
 vendor_short: xiaomi
-versions: [18.1, 19.1]
+versions: [18.1, 19.1, 20]
 wifi: 802.11 a/b/g/n/ac