Now armv8_crypto is using FPU_KERN_NOCTX, this results in a kernel panic
in armv8_crypto.c:armv8_crypto_cipher_setup:
panic: recursive fpu_kern_enter while in PCB_FP_NOSAVE state
This is because in armv8_crypto.c:armv8_crypto_cipher_process,
directly after calling fpu_kern_enter() a call is made to
armv8_crypto_cipher_setup(), resulting in nested calls to
fpu_kern_enter() without the required fpu_kern_leave() inbetween.
Move the fpu_kern_enter() in armv8_crypto_cipher_process() after the
setup to resolve this.
Fixes: 6485286f536f ("armv8_crypto: Switch to using FPU_KERN_NOCTX")
Sponsored by: Arm Ltd