imx-usb-loader: add explicit dependencies for host variant

Signed-off-by: Julien Floret <julien.floret@6wind.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/imx-usb-loader/imx-usb-loader.mk

@@ -8,7 +8,7 @@ IMX_USB_LOADER_VERSION = f96aee286ea17c832b7ec922dd76842deb5ce299
 IMX_USB_LOADER_SITE = $(call github,boundarydevices,imx_usb_loader,$(IMX_USB_LOADER_VERSION))
 IMX_USB_LOADER_LICENSE = LGPLv2.1+
 IMX_USB_LOADER_LICENSE_FILES = COPYING
-IMX_USB_LOADER_DEPENDENCIES = host-libusb host-pkgconf
+HOST_IMX_USB_LOADER_DEPENDENCIES = host-libusb host-pkgconf
 
 define HOST_IMX_USB_LOADER_BUILD_CMDS
 	$(HOST_CONFIGURE_OPTS) $(MAKE) -C $(@D)