u-boot-fslc: upgrade to 2021.07-rc version
Upgrade U-Boot version to the current 2021.07-rc from upstream, this
version of U-Boot has a better support for mx8m series than the 2021.04.
Tree is synchronized up to commit
8ddaf94358 ("Merge tag 'dm-pull-29apr21'
of https://source.denx.de/u-boot/custodians/u-boot-dm") fro mupstream
repository.
Following patches are submitted internally to the tree:
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40d646ab7f arm: imx: imx8mm: correct unrecognized fracpll frequency
97de0bfbf2 imx8mn: configs: add support for distro boot commands
e64e0e19b4 imx8mp: configs: enable distro default features
d57afdaab0 imx8mm: configs: enable distro default features
2d107f6d15 imx: iMX6: Define disconnect_from_pc function
560a81e9cb MLK-21854-2 imx: uuu: Update autoboot to run uuu or fastboot
81e786caa1 pico-imx6ul, pico-imx7d: Explain how to use eMMC user partition
2f7d3890b6 mx6sabre_common: Dynamically change the video output
6b4b7e030e mx6sabresd: Enable video interfaces in bootargs
----
Align DEPENDS with those present for OE-Core version of u-boot recipe.
Signed-off-by: Andrey Zhizhikin <andrey.z@gmail.com>
