acpi: Pass the correct device to acpi_pcib_osc

Fix a copy-and-paste error in acpi_pcib_request_feature where the
child device was passed into acpi_pcib_osc rather than the pcib
device.

Reviewed by:	garga, jhb
Fixes:	ba19049 ("acpica: Extract _OSC parsing to a common file")
Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D48285

sys/dev/acpica/acpi_pcib_acpi.c

@@ -703,7 +703,7 @@ acpi_pcib_request_feature(device_t pcib, device_t dev, enum pci_feature feature)
 		return (EINVAL);
 	}
 
-	return (acpi_pcib_osc(dev, &sc->ap_osc_ctl, osc_ctl));
+	return (acpi_pcib_osc(pcib, &sc->ap_osc_ctl, osc_ctl));
 }
 
 static bus_dma_tag_t