OpTestKernelDump.py: add SLES 16 kdump support and persist crashkernel configuration

Introduce support for configuring kdump on SLES 16 systems to ensure
the crashkernel value remains consistent across reboots. Added steps
to handle SLES 16 specific behavior, including updating configuration
and bootloader settings, so that the corrected crashkernel reservation
is preserved and kdump can reliably collect crash dumps

Signed-off-by: Shirisha G <shirisha@linux.ibm.com>

Author: shirishaganta1

testcases/OpTestKernelDump.py

@@ -189,7 +189,7 @@ def reset_kdump_bootloaded_if_needed(self):
         if (self.distro == "sles") and self.version == "16":
             log.info("SLES 16 detected: forcing KDUMP_UPDATE_BOOTLOADER=false and restarting kdump.service")
             self.c.run_command("sed -i 's/^KDUMP_UPDATE_BOOTLOADER=.*/KDUMP_UPDATE_BOOTLOADER=\"false\"/' /etc/sysconfig/kdump")
-            self.c.run_command_ignore_fail("systemctl restart kdump.service")
+            self.c.run_command("kdumptool commandline -c -u")
 
     def is_fadump_param_enabled(self):
         '''
@@ -750,6 +750,14 @@ def runTest(self):
             self.c.run_command("rm -rf ServiceReport; git clone https://github.com/linux-ras/ServiceReport; cd ServiceReport;"
                                "python ./servicereport --plugins kdump package --repair", timeout=240)
             time.sleep(10)
+        elif self.distro == "sles" and self.version == "16":
+            self.cv_HOST.host_check_command("kdumptool")
+            self.c.run_command("zypper install -y ServiceReport", timeout=240)
+            output = self.c.run_command("servicereport -r -p kdump || true", timeout=240)
+            if "Auto Fixed" in "\n".join(output):
+                log.info("servicereport auto fixed crashkernel, reboot required")
+            self.reset_kdump_bootloaded_if_needed()
+
         elif self.distro == "sles":
             self.cv_HOST.host_check_command("kdumptool")
             self.c.run_command("zypper install -y ServiceReport; servicereport -r -p kdump;"