[LoongArch][test] Regenerate checks for the ghc-cc.ll test case

Seems the codegen was stale (the extra `ret` after the tail call should
not be there, and indeed it is not emitted by the current code), plus
the whitespaces are different from the update_llc_test_checks.py style.
Simply regenerate it to fix the test failure.

Differential Revision: https://reviews.llvm.org/D140670