The original naming is inaccurate. An RVV intrinsic always comes with
a corresponding policy behavior. When the policy is unspecified for an
intrinsic, its policy behavior should be it's default assumption.
This is the 2nd commit of a patch-set that aims to change the default policy
for RVV intrinsics from TAMU to TAMA.
Please refer to the cover letter in the 1st commit (D141573) for an
overview.