libbinder: further downgrade oneway spam log

We do get this info in dmesg as well. Reduce spam.

Bug: 188928044
Test: N/A
Change-Id: I521b43a7e66df849dfb91766c10cda09b19b12d1
diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index 3095607..8ef4341 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp
@@ -409,7 +409,7 @@
         uint32_t enable = DEFAULT_ENABLE_ONEWAY_SPAM_DETECTION;
         result = ioctl(fd, BINDER_ENABLE_ONEWAY_SPAM_DETECTION, &enable);
         if (result == -1) {
-            ALOGI("Binder ioctl to enable oneway spam detection failed: %s", strerror(errno));
+            ALOGD("Binder ioctl to enable oneway spam detection failed: %s", strerror(errno));
         }
     } else {
         ALOGW("Opening '%s' failed: %s\n", driver, strerror(errno));