Enable host mode for SBC decoder fuzzer

It works regardless of the platform

Bug: 257060629
Test: SANITIZE_HOST=address make sbcdecoder_fuzzer && \
  out/host/linux-x86/fuzz/x86_64/sbcdecoder_fuzzer/sbcdecoder_fuzzer
Change-Id: I903f79ee4fd1f3968aa00b0df51ebd3140435323