tcg/arm: Fix SIGILL in tcg_out_qemu_st_direct tcg/s390x: Fix encoding of VRIc, VRSa, VRSc insns tcg: Clean up error paths in alloc_code_gen_buffer_splitwx_memfd linux-user/riscv: Adjust vdso signal frame cfa offsets linux-user: Fixed cpu restore with pc 0 on SIGBUS