Move VDSO pointers to a shared globals struct.

Change-Id: I01cbc9cf0917dc1fac52d9205bda2c68529d12ef
diff --git a/libc/bionic/libc_init_common.h b/libc/bionic/libc_init_common.h
index 673ad5b..5066652 100644
--- a/libc/bionic/libc_init_common.h
+++ b/libc/bionic/libc_init_common.h
@@ -51,6 +51,9 @@
 #if defined(__cplusplus)
 
 class KernelArgumentBlock;
+
+__LIBC_HIDDEN__ void __libc_init_globals(KernelArgumentBlock& args);
+
 __LIBC_HIDDEN__ void __libc_init_common(KernelArgumentBlock& args);
 
 __LIBC_HIDDEN__ void __libc_init_AT_SECURE(KernelArgumentBlock& args);