Add -Wno-unused-parameter to enable building for riscv64 am: 820ff0d95f am: 0bd6330fae am: bf2d9d7fc4 am: 938337bd99 am: b62bd8465f

Original change: https://android-review.googlesource.com/c/platform/external/pthreadpool/+/2663615

Change-Id: Iaa40186d4e1030d1086459850f990d46953376bf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/Android.bp b/Android.bp
index fee3adb..42fff11 100644
--- a/Android.bp
+++ b/Android.bp
@@ -43,6 +43,7 @@
         "-O2",
         "-Wno-deprecated-declarations",
         "-Wno-missing-field-initializers",
+        "-Wno-unused-parameter",
         "-DPTHREADPOOL_USE_CPUINFO=1",
         "-DPTHREADPOOL_USE_CONDVAR=1",
     ],