imx-usb-loader: bump to latest commit

The current commit is from Sep 23, 2016. Update to latest commit from
Jul 11, 2017 to add support for i.MX6ULL processors.

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/imx-usb-loader/imx-usb-loader.hash

@@ -1,2 +1,2 @@
 # locally computed
-sha256  40e1e36791e91366b13f57b16b32e75cf05e7177b2813f1bf2446419d0ed44eb  imx-usb-loader-9b0e81cf9511c3a27cf635407714caa2793b570c.tar.gz
+sha256  5232292cb1ad853905357de59ed251b57060562dc8d7f1cce0bb6c0c8d280dae  imx-usb-loader-f04f225ebc1c38e81eb24745333c8622deda6b49.tar.gz

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

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-IMX_USB_LOADER_VERSION = 9b0e81cf9511c3a27cf635407714caa2793b570c
+IMX_USB_LOADER_VERSION = f04f225ebc1c38e81eb24745333c8622deda6b49
 IMX_USB_LOADER_SITE = $(call github,boundarydevices,imx_usb_loader,$(IMX_USB_LOADER_VERSION))
 IMX_USB_LOADER_LICENSE = LGPL-2.1+
 IMX_USB_LOADER_LICENSE_FILES = COPYING