Add memfd related syscalls to allowed list

Required for migration of ashmem to memfd.

Bug: 113362644
Change-Id: I5c63ff130f67481deed5c8d975830463716c397c
Signed-off-by: Joel Fernandes <joelaf@google.com>
diff --git a/services/mediacodec/seccomp_policy/mediacodec-arm.policy b/services/mediacodec/seccomp_policy/mediacodec-arm.policy
index edf4dab..0aa5acc 100644
--- a/services/mediacodec/seccomp_policy/mediacodec-arm.policy
+++ b/services/mediacodec/seccomp_policy/mediacodec-arm.policy
@@ -13,6 +13,8 @@
 ppoll: 1
 mmap2: 1
 getrandom: 1
+memfd_create: 1
+ftruncate64: 1
 
 # mremap: Ensure |flags| are (MREMAP_MAYMOVE | MREMAP_FIXED) TODO: Once minijail
 # parser support for '<' is in this needs to be modified to also prevent