wiki: Improve FP4 instructions

Change-Id: I63e144b595502d2bb4b9c51d305286ab41e4082c

Author: mikeNG

_data/devices/FP4.yml

@@ -1,9 +1,11 @@
 architecture: arm64
 battery: {capacity: 3905, removable: True, tech: 'Li-Ion'}
+before_install: {instructions: 'needs_specific_android_fw', ships_fw: True, version: '13'}
+before_recovery_install: {instructions: 'boot_stack', partitions: [dtbo]}
 bluetooth: {profiles: [A2DP + aptX HD], spec: '5.1'}
 cameras:
-  - {flash: 'Dual LED (dual tone)', info: '48 MP'}
-  - {flash: 'Dual LED (dual tone)', info: '48 MP'}
+  - {flash: 'Dual LED (dual tone)', info: '48 MP (wide)'}
+  - {flash: 'Dual LED (dual tone)', info: '48 MP (ultrawide)'}
   - {flash: None, info: '25 MP'}
 codename: FP4
 cpu: Kryo 570