sync Mi439 asserts

* taken from https://github.com/LineageOS/android_device_xiaomi_Mi439/blob/9002689e7bdfdcd7160da13c47b9d78aff4b9c64/BoardConfig.mk#L30

Signed-off-by: SirRGB <sirrgb@proton.me>

openandroidinstaller/assets/configs/Mi439.yaml

@@ -15,6 +15,7 @@ metadata:
     - olive
     - olivelite
     - olivewood
+    - olives
   twrp-link: mi439
 requirements:
   firmware: MiUI 12.5 (Q)

openandroidinstaller/assets/configs/mermaid.yaml

@@ -2,9 +2,9 @@ metadata:
   maintainer: Tobias Sterbak (tsterbak)
   device_name: Sony Xperia 10 Plus
   is_ab_device: true
-  device_code: mermaid 
+  device_code: mermaid
   supported_device_codes:
-    - mermaid 
+    - mermaid
 steps:
   unlock_bootloader:
     - type: confirm_button
@@ -19,7 +19,7 @@ steps:
     - type: link_button_with_confirm
       content: >
         Click on the button to open the instructions on Sonys official unlocking website to generate an unlock code for your bootloader.
-        Once you got the code write it down somewhere and continue to input the code. 
+        Once you got the code write it down somewhere and continue to input the code.
       link: https://developer.sonymobile.com/unlockbootloader/unlock-yourboot-loader/
     - type: confirm_button
       content: >
@@ -35,7 +35,7 @@ steps:
       command: fastboot_unlock_with_code
     - type: call_button
       content: >
-        Press the button to reboot. Since the device resets completely, you will need to re-enable USB debugging to continue. 
+        Press the button to reboot. Since the device resets completely, you will need to re-enable USB debugging to continue.
         Connect your device to your PC via USB. Then confirm here to continue.
       command: fastboot_reboot
   boot_recovery:
@@ -57,4 +57,4 @@ steps:
     - type: call_button
       content: >
         Now we need to boot into recovery again. Press run and when you see the TWRP screen you can continue.
-      command: fastboot_flash_boot
+      command: fastboot_flash_boot