Merge tag 'riscv-mw2-6.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel...

Merge tag 'riscv-mw2-6.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/alexghiti/linux into for-next

riscv patches for 6.15-rc1, part 2

* A bunch of fixes:
  - 2 fixes in the purgatory code which prevented kexec to work
  - Workaround an issue with gcc-15

* tag 'riscv-mw2-6.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/alexghiti/linux:
  riscv: Add norvc after .option arch in runtime const
  riscv: Make sure toolchain supports zba before using zba instructions
  riscv/purgatory: 4B align purgatory_start
  riscv/kexec_file: Handle R_RISCV_64 in purgatory relocator
  selftests: riscv: fix v_exec_initval_nolibc.c
  riscv: Fix hugetlb retrieval of number of ptes in case of !present pte
  riscv: print hartid on bringup
  dt-bindings: riscv: document vector crypto requirements
  dt-bindings: riscv: add vector sub-extension dependencies
  dt-bindings: riscv: d requires f
  RISC-V: add f & d extension validation checks
  RISC-V: add vector crypto extension validation checks
  RISC-V: add vector extension validation checks