[llvm] [RISCV] Allow crypto features to imply dependents (PR #112659)

[Craig Topper via llvm-commits]

topperc wrote:

> instead the frontend should _satisfy_ this dependency!

The .td file also generates code included by RISCVISAInfo.cpp used by clang to make -march imply the dependencies. This is needed to set preprocessor defines correctly.

https://github.com/llvm/llvm-project/pull/112659