Merge patch series "64-bit U-Boot configuration without SPL"

Jeremy Compostella <jeremy.compostella@intel.com> says:

Introduces a new configuration option X86_RUN_64BIT_NO_SPL to allow
building U-Boot as a 64-bit binary without using the SPL (Secondary
Program Loader). The motivation is to simplify the boot process for
specific x86-based platforms that do not require SPL, such as those
booting directly from a 64-bit coreboot firmware.

Link: https://lore.kernel.org/r/87bjtyutkp.fsf@jcompost-mobl.amr.corp.intel.com