riscv: use far jump to init/fini
.hidden __mlibc_do_dtors
.section .init
- j __mlibc_do_ctors
+ tail __mlibc_do_ctors
.section .fini
- j __mlibc_do_dtors
+ tail __mlibc_do_dtors
.section .ctors
.hidden __CTOR_END__
