samples, tests: convert string-based twister lists to YAML lists

Twister now supports using YAML lists for all fields that were written
as space-separated lists. Used twister_to_list.py script. Some artifacts
on string length are due to how ruamel dumps content.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>

tests/net/lib/lwm2m/content_json/testcase.yaml

@@ -3,4 +3,6 @@ common:
 tests:
   net.lwm2m.content_json:
     filter: TOOLCHAIN_HAS_NEWLIB == 1
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net

tests/net/lib/lwm2m/content_link_format/testcase.yaml

@@ -3,4 +3,6 @@ common:
 tests:
   net.lwm2m.content_link_format:
     filter: TOOLCHAIN_HAS_NEWLIB == 1
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net

tests/net/lib/lwm2m/content_oma_tlv/testcase.yaml

@@ -3,4 +3,6 @@ common:
 tests:
   net.lwm2m.content_oma_tlv:
     filter: TOOLCHAIN_HAS_NEWLIB == 1
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net

tests/net/lib/lwm2m/content_plain_text/testcase.yaml

@@ -3,4 +3,6 @@ common:
 tests:
   net.lwm2m.content_plain_text:
     filter: TOOLCHAIN_HAS_NEWLIB == 1
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net

tests/net/lib/lwm2m/content_raw_cbor/testcase.yaml

@@ -3,4 +3,6 @@ common:
 tests:
   net.lwm2m.content_raw_cbor:
     platform_allow: native_posix
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net

tests/net/lib/lwm2m/content_senml_cbor/testcase.yaml

@@ -3,4 +3,6 @@ common:
 tests:
   net.lwm2m.content_senml_cbor:
     platform_allow: native_posix
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net

tests/net/lib/lwm2m/engine/testcase.yaml

@@ -3,4 +3,6 @@ common:
 tests:
   net.lwm2m.engine:
     platform_allow: native_posix
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net

tests/net/lib/lwm2m/lwm2m_engine/testcase.yaml

@@ -3,4 +3,6 @@ common:
 tests:
   net.lwm2m.lwm2m_engine:
     platform_allow: native_posix
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net

tests/net/lib/lwm2m/lwm2m_rd_client/testcase.yaml

@@ -1,7 +1,12 @@
 common:
   depends_on: netif
-  tags: net lwm2m
-  platform_allow: native_posix qemu_x86 qemu_x86_64
+  tags:
+    - net
+    - lwm2m
+  platform_allow:
+    - native_posix
+    - qemu_x86
+    - qemu_x86_64
   integration_platforms:
     - native_posix
     - qemu_x86

tests/net/lib/lwm2m/lwm2m_registry/testcase.yaml

@@ -2,5 +2,7 @@ common:
   depends_on: netif
 tests:
   net.lwm2m.lwm2m_registry:
-    tags: lwm2m net
+    tags:
+      - lwm2m
+      - net
     filter: TOOLCHAIN_HAS_NEWLIB == 1