ti_usb_3410_5052: use request_firmware()

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/firmware/Makefile b/firmware/Makefile
index 2b34074..28f975f 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -53,6 +53,7 @@
 	keyspan/usa28.fw keyspan/usa28xa.fw keyspan/usa28xb.fw		\
 	keyspan/usa28x.fw keyspan/usa49w.fw keyspan/usa49wlc.fw
 endif
+fw-shipped-$(CONFIG_USB_SERIAL_TI) += ti_3410.fw ti_5052.fw
 fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_PDA) += keyspan_pda/keyspan_pda.fw
 fw-shipped-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda/xircom_pgs.fw