Send bionic's fatal logging to the crash log.

Bug: 14159417
Change-Id: I7aa986fb8e11660035221f9bb4fe0bc40ac36c58
diff --git a/libc/bionic/libc_logging.cpp b/libc/bionic/libc_logging.cpp
index f15abbe..79472b3 100644
--- a/libc/bionic/libc_logging.cpp
+++ b/libc/bionic/libc_logging.cpp
@@ -495,7 +495,7 @@
   }
 
   iovec vec[6];
-  char log_id = LOG_ID_MAIN;
+  char log_id = (priority == ANDROID_LOG_FATAL) ? LOG_ID_CRASH : LOG_ID_MAIN;
   vec[0].iov_base = &log_id;
   vec[0].iov_len = sizeof(log_id);
   uint16_t tid = gettid();