RFR: 8302328: [s390x] Simplify asm_assert definition

[Martin Doerr]

On Thu, 2 Mar 2023 07:49:05 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> This PR cleanups some assert statements and specifies branch condition at calling site itself. Remaining asm_assert methods are inlined as well.

Note that PPC64 still has `asm_assert_eq` and `asm_assert_ne`. But I'm ok with replacing it. Let's hear what other people think.
Including `.inline.hpp` files from `.hpp` files is not acceptable. You need to find a different solution.

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PR: https://git.openjdk.org/jdk/pull/12822