allow mremap to use MEMRMREMAP_MAYMOVE flag

Bug: 151163101
Bug: 152908945
Test: see bug, shouldn't see crash in mediacodec minijail

Merged-In: If25dc5a56fe2f549d7867aa5a459b949be7e6947
Change-Id: I9835b0e8ef2e8286b5142c6bec9fb7796d3947cc
diff --git a/services/mediacodec/seccomp_policy/mediacodec-arm.policy b/services/mediacodec/seccomp_policy/mediacodec-arm.policy
index 3870a11..51564ca 100644
--- a/services/mediacodec/seccomp_policy/mediacodec-arm.policy
+++ b/services/mediacodec/seccomp_policy/mediacodec-arm.policy
@@ -23,7 +23,7 @@
 # on ARM is statically loaded at 0xffff 0000. See
 # http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0211h/Babfeega.html
 # for more details.
-mremap: arg3 == 3
+mremap: arg3 == 3 || arg3 == MREMAP_MAYMOVE
 munmap: 1
 mprotect: 1
 madvise: 1