clint_time_val will soon be used by the RISC-V implementation of
random_get_entropy(), which is a static inline function that may be used by
modules (at least CRYPTO_JITTERENTROPY=m).
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NPalmer Dabbelt <palmerdabbelt@google.com>