scripts: Remove nrf54lm20pdk occurences

Remove use of nrf54lm20pdk in the sourcecode.

Signed-off-by: Karol Lasończyk <[email protected]>

Author: kl-cruz

scripts/quarantine_integration.yaml

@@ -585,7 +585,6 @@
     - nrf54l15dk/nrf54l05/cpuapp
     - nrf54l15dk/nrf54l10/cpuapp
     - nrf54l15dk/nrf54l15/cpuapp
-    - nrf54lm20pdk/nrf54lm20a/cpuapp
     - [email protected]/nrf54h20/cpuapp
   comment: "Configurations excluded to limit resources usage in integration builds"
 
@@ -598,7 +597,6 @@
     - nrf54l15dk/nrf54l05/cpuapp
     - nrf54l15dk/nrf54l10/cpuapp
     - nrf54l15dk/nrf54l15/cpuapp
-    - nrf54lm20pdk/nrf54lm20a/cpuapp
     - [email protected]/nrf54h20/cpuapp
   comment: "Configurations excluded to limit resources usage in integration builds"
 
@@ -611,7 +609,6 @@
     - nrf54l15dk/nrf54l05/cpuapp
     - nrf54l15dk/nrf54l10/cpuapp
     - nrf54l15dk/nrf54l15/cpuapp
-    - nrf54lm20pdk/nrf54lm20a/cpuapp
     - [email protected]/nrf54h20/cpuapp
   comment: "Configurations excluded to limit resources usage in integration builds"