riscv: Fix build warning for mm/init

Add static keyword for resource_init, this function is only used in this
object file.

Signed-off-by: Zong Li <zong.li@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
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Zong Li 2020-07-16 14:15:26 +08:00 • committed by Palmer Dabbelt
commit e3ef4d6945
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