ACPI: bus: implement acpi_device_hid when !ACPI

Provide an implementation of acpi_device_hid that can be used when
CONFIG_ACPI is not set.

Reviewed-by: Sakari Ailus <[e-mail]>
Acked-by: Mauro Carvalho Chehab <[e-mail]>
Signed-off-by: Ricardo Ribalda <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Rafael J. Wysocki <[e-mail]>

include/acpi/acpi_bus.h

···
 
 static inline int acpi_wait_for_acpi_ipmi(void) { return 0; }
 
+static inline const char *acpi_device_hid(struct acpi_device *device)
+{
+	return "";
+}
+
 static inline bool
 acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld)
 {