platform/x86: hp-wmi: Don't log a warning on HPWMI_RET_UNKNOWN_COMMAND errors

The recently added thermal policy support makes a
hp_wmi_perform_query(0x4c, ...) call on older devices which do not
support thermal policies this causes the following warning to be
logged (seen on a HP Stream x360 Convertible PC 11):

[   26.805305] hp_wmi: query 0x4c returned error 0x3

Error 0x3 is HPWMI_RET_UNKNOWN_COMMAND error. This commit silences
the warning for unknown-command errors, silencing the new warning.

Cc: Elia Devito <eliadevito@gmail.com>
Fixes: 81c93798ef ("platform/x86: hp-wmi: add support for thermal policy")
Link: https://lore.kernel.org/r/20210114232744.154886-1-hdegoede@redhat.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/hp-wmi.c

@@ -247,7 +247,8 @@ static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
 	ret = bios_return->return_code;
 
 	if (ret) {
-		if (ret != HPWMI_RET_UNKNOWN_CMDTYPE)
+		if (ret != HPWMI_RET_UNKNOWN_COMMAND &&
+		    ret != HPWMI_RET_UNKNOWN_CMDTYPE)
 			pr_warn("query 0x%x returned error 0x%x\n", query, ret);
 		goto out_free;
 	}