socfpga: boot0 hook: adjust to unified boot0 semantics

With the updated boot0 semantics (i.e. giving the boot0-hook control
over when and where the vector table is emitted), the boot0-hook for
the socfpga needs to be adjusted.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
1 file changed