Merge patch series "Populate kaslr seed with RNG"

To quote the author:

This patch series creates a common API (fdt_fixup_kaslr_seed()) for
populating the kaslr seed in the DTB.  Existing users (kaslrseed,
and ARMv8 sec firmware) have been updated to use this common API.

New functionality has been introduced to populate the kaslr using
the RNG.  This can be enabled with CONFIG_RNG_TPM_SEED.