Add no mmap/mprotect/prctl policy files.

The mediaswcodec process requires a less restrictive policy for
mmap/mprotect/prctl. Since the policy files have no flow control, generate
versions of the policies that can be included but only do not have
the mmap/mprotect/prctl rules.

Flag: EXEMPT refactor

Test: Ran debuggerd <PID_OF_media.swcodec> on arm device.
Test: Ran debuggerd <PID_OF_media.swcodec> on arm64 device.
Test: Ran debuggerd <PID_OF_media.swcodec> on riscv64 emulator.
Test: Ran debuggerd <PID_OF_media.swcodec> on x86 emulator.
Test: Ran debuggerd <PID_OF_media.swcodec> on x86_64 emulator.
Change-Id: I3b611a5a0be1cb0bf53295209fc9e8e956f8392a