samples: Replaced LM20 PDK with DK for Matter and Thread

* Renamed board .conf and .overlay files
* Renamed pm_statics
* Updated sample.ymls
* Updated snippets
* Added missing entry for LM20 in matter-debug snippet

Signed-off-by: Kamil Kasperczyk <[email protected]>

Author: kkasperczyk-no

samples/matter/light_bulb/boards/nrf54lm20pdk_nrf54lm20a_cpuapp.conf renamed to samples/matter/light_bulb/boards/nrf54lm20dk_nrf54lm20a_cpuapp.conf

@@ -11,14 +11,14 @@ tests:
       - nrf7002dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp/ns
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     platform_allow:
       - nrf52840dk/nrf52840
       - nrf5340dk/nrf5340/cpuapp
       - nrf7002dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp/ns
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     tags:
       - sysbuild
       - ci_samples_matter
@@ -34,13 +34,13 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf7002dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     platform_allow:
       - nrf52840dk/nrf52840
       - nrf5340dk/nrf5340/cpuapp
       - nrf7002dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     tags:
       - sysbuild
       - ci_samples_matter
@@ -56,13 +56,13 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf7002dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     platform_allow:
       - nrf52840dk/nrf52840
       - nrf5340dk/nrf5340/cpuapp
       - nrf7002dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     tags:
       - sysbuild
       - ci_samples_matter
@@ -101,13 +101,13 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf7002dk/nrf5340/cpuapp
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     integration_platforms:
       - nrf52840dk/nrf52840
       - nrf5340dk/nrf5340/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf7002dk/nrf5340/cpuapp
-      - nrf54lm20pdk/nrf54lm20a/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     tags:
       - sysbuild
       - ci_samples_matter