sm8450-common: Allow setsockopt syscall for qcom c2audio

```
$ strace -f vendor/bin/hw/[email protected]
[...]
[pid  5194] socket(AF_UNIX, SOCK_SEQPACKET|SOCK_CLOEXEC, 0) = 13
[pid  5194] setsockopt(13, SOL_SOCKET, SO_SNDTIMEO, "\5\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) = 13
[pid  5194] --- SIGSYS {si_signo=SIGSYS, si_code=SYS_SECCOMP, si_call_addr=0x7a905a365c, si_syscall=__NR_setsockopt, si_arch=AUDIT_ARCH_AARCH64} ---
```

Change-Id: Ifa0420883cbf663f8c7576798b1f35031f660f54

extract-files.sh

@@ -102,6 +102,10 @@ function blob_fixup() {
             [ "$2" = "" ] && return 0
             grep -q "gettid: 1" "${2}" || echo "gettid: 1" >> "${2}"
             ;;
+        vendor/etc/seccomp_policy/c2audio.vendor.ext-arm64.policy)
+            [ "$2" = "" ] && return 0
+            grep -q "setsockopt: 1" "${2}" || echo "setsockopt: 1" >> "${2}"
+            ;;
         vendor/etc/vintf/manifest/c2_manifest_vendor.xml)
             [ "$2" = "" ] && return 0
             sed -i '/dolby/d' "${2}"