Expand whitelist

Bug: 37769298
Test: Boots. Cannot test app behavior without account
Change-Id: Iebb7616f100368bf2e702ec51f637df1f3727885
diff --git a/libc/SECCOMP_WHITELIST.TXT b/libc/SECCOMP_WHITELIST.TXT
index a2a54c6..d2ab20e 100644
--- a/libc/SECCOMP_WHITELIST.TXT
+++ b/libc/SECCOMP_WHITELIST.TXT
@@ -115,3 +115,6 @@
 int mlock2(const void* addr, size_t len, int flags) all
 ssize_t preadv2(int fd, const struct iovec* iov, int iovcnt, off_t offset, int flags) all
 ssize_t pwritev2(int fd, const struct iovec* iov, int iovcnt, off_t offset, int flags) all
+
+# b/37769298
+int dup2(int oldfd, int newfd)	arm,x86,mips