On intel it is not possible to grep for the compiled in version string
so another one was created and put in SPL. but missed the " so it's not
correct json anymore.
that combined with the fact that board_late_init() was never called due
to missing define in config made the update logic fail.
Change the PKG_RELEASE to 7 as a previous bug in the Makefile made it
actually 6 even if the value was set to 5.
We need to have a version that we can change whenever we want to force and
update of u-boot. The u-boot version still exists.
To change the version and force an update change the PKG_RELEASE variable
in package Makefile.
uboot version is now checked on startup and if the installed one is too old
it will be updated.
