tests: coredump: Adjust logging backend patterns to xtensa

Adjust tests/subsys/debug/coredump logging backend's output
matching pattern to Xtensa fatal errors handler's call sequence
difference.

Signed-off-by: Dmitrii Golovanov <[email protected]>

Author: golowanow

tests/subsys/debug/coredump/testcase.yaml

@@ -7,17 +7,40 @@ tests:
     platform_exclude: acrn_ehl_crb
     arch_exclude:
       - posix
+      - xtensa
     integration_platforms:
       - qemu_x86
     harness: console
     harness_config:
       type: multi_line
       regex:
         - "Coredump: (.*)"
+        - ">>> ZEPHYR FATAL ERROR "
         - "E: #CD:BEGIN#"
         - "E: #CD:5([aA])45([0-9a-fA-F]+)"
         - "E: #CD:41([0-9a-fA-F]+)"
         - "E: #CD:4([dD])([0-9a-fA-F]+)"
         - "E: #CD:4([dD])([0-9a-fA-F]+)"
         - "E: #CD:END#"
         - "k_sys_fatal_error_handler"
+
+  debug.coredump.logging_backend_xtensa:
+    tags: coredump
+    ignore_faults: true
+    ignore_qemu_crash: true
+    filter: CONFIG_ARCH_SUPPORTS_COREDUMP
+    arch_allow:
+      - xtensa
+    harness: console
+    harness_config:
+      type: multi_line
+      regex:
+        - "Coredump: (.*)"
+        - "E: #CD:BEGIN#"
+        - "E: #CD:5([aA])45([0-9a-fA-F]+)"
+        - "E: #CD:41([0-9a-fA-F]+)"
+        - "E: #CD:4([dD])([0-9a-fA-F]+)"
+        - "E: #CD:4([dD])([0-9a-fA-F]+)"
+        - "E: #CD:END#"
+        - ">>> ZEPHYR FATAL ERROR "
+        - "k_sys_fatal_error_handler"