qemu..smbios_table: Convert bytes to text

On py3 we need to convert results to text.
Signed-off-by: NLukáš Doktor <ldoktor@redhat.com>

qemu/tests/smbios_table.py

@@ -5,6 +5,7 @@ from avocado.utils import process
 from virttest import error_context
 from virttest import env_process
 from virttest import utils_misc
+from virttest.compat_52lts import decode_to_text
 
 
 @error_context.context_aware
@@ -39,8 +40,8 @@ def run(test, params, env):
             dmidecode_key = dmidecode_key.split()
             for key in dmidecode_key:
                 cmd = (dmidecode_exp % (smbios_type_number, key))
-                default_key_para = process.system_output(
-                    cmd, shell=True).strip()
+                default_key_para = decode_to_text(process.system_output(
+                    cmd, shell=True).strip())
                 smbios_key_para_set = params.object_params(sm_type).get(key,
                                                                         default_key_para)
                 smbios += ",%s='%s'" % (key.lower(), smbios_key_para_set)
@@ -87,8 +88,8 @@ def run(test, params, env):
             for key in dmidecode_key:
                 cmd = (dmidecode_exp % (smbios_type_number, key))
                 smbios_get_para = session.cmd(cmd).strip()
-                default_key_para = process.system_output(
-                    cmd, shell=True).strip()
+                default_key_para = decode_to_text(process.system_output(
+                                                  cmd, shell=True).strip())
                 if params.get("smbios_type_disable", "no") == "no":
                     smbios_set_para = params.object_params(sm_type).get(key,
                                                                         default_key_para)