Add API to allow apps to attach extra information to tombstones.

Test: atest debuggerd_test
Bug: 155462331
Bug: 309446525
Change-Id: Idc8387307738957dbba3daaae59f605566329f0f
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index 156e9ee..ecdb25c 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1586,6 +1586,8 @@
 
 LIBC_V { # introduced=VanillaIceCream
   global:
+    android_register_crash_detail;
+    android_unregister_crash_detail;
     epoll_pwait2;
     epoll_pwait2_64;
     localtime_rz;