package/freescale-imx/imx-vpu: fix {EULA, COPYING} file hashes

package/freescale-imx/imx-vpu: fix {EULA, COPYING} file hashes

Commit a646cd27b112 (package/freescale-imx/imx-vpu: bump version to
5.4.39.3) somehow messed up when updating the hashes of the licene
files:

    >>> imx-vpu 5.4.39.3 Collecting legal info
    ERROR: EULA has wrong sha256 hash:
    ERROR: expected: a39da2e94bd8b99eaac4325633854620ea3a55145259c3a7748c610a80714cfc
    ERROR: got     : 7ffad92e72e5f6b23027e7cf93a770a4acef00a92dcf79f22701ed401c5478c0
    ERROR: Incomplete download, or man-in-the-middle (MITM) attack

    ERROR: COPYING has wrong sha256 hash:
    ERROR: expected: 69cbb76b3f10ac5a8c36f34df7bbdf50825815560c00a946fff2922365ef01a2
    ERROR: got     : 2ceab29de5ea533b86f570bcc4e9ddbfb5fe85a1da4978a8613ff3fd9bed781d
    ERROR: Incomplete download, or man-in-the-middle (MITM) attack

The most probable cause is some confusion with imx-vpu-hantro, as the
faulty hashes reported above are those found in imx-vpu-hantro.

Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
[yann.morin.1998@free.fr: rewrite commit log with a probably reason]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>