fix(90kernel-modules): add isp1760 USB controller

Like the dwc/chipidea controllers the isp1760 can act in either
host or gadget mode so it ends up in it's own directory. Add this
driver into the initrd as it's part of some arm platforms and
is needed to be able to boot off USB storage.

Fixes issue #1619

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>

modules.d/90kernel-modules/module-setup.sh

@@ -96,6 +96,7 @@ installkernel() {
                 "=drivers/usb/dwc2" \
                 "=drivers/usb/dwc3" \
                 "=drivers/usb/host" \
+                "=drivers/usb/isp1760" \
                 "=drivers/usb/misc" \
                 "=drivers/usb/musb" \
                 "=drivers/usb/phy" \