nfsd: merge stable fix into main nfsd branch

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Makefile

arch/arm64/crypto/aes-modes.S

arch/powerpc/Kconfig

arch/powerpc/include/asm/cpu_has_feature.h

arch/powerpc/include/asm/mmu.h

arch/powerpc/include/asm/module.h

arch/powerpc/include/asm/stackprotector.h

arch/powerpc/kernel/Makefile

arch/powerpc/kernel/asm-offsets.c

arch/powerpc/kernel/eeh_driver.c

arch/powerpc/kernel/entry_32.S

arch/powerpc/kernel/module_64.c

arch/powerpc/kernel/process.c

arch/powerpc/kernel/prom_init.c

arch/powerpc/mm/pgtable-radix.c

arch/sparc/include/asm/mmu_context_64.h

arch/sparc/kernel/irq_64.c

arch/sparc/kernel/sstate.c

arch/sparc/kernel/traps_64.c