Fix cpu hint for sw codecs

Add cpu hint for c2 sw codecs as well as omx.

bug: 130669553
test: manually test that when playing YouTube 1080pHDR
content, adb logcat shows traces from SchedulingPolicyService:
SchedulingPolicyService: Moving xxxx to group 5

Change-Id: Ie7afeb207fc0a898669bc7b98b270982471e6b65
diff --git a/services/mediacodec/main_swcodecservice.cpp b/services/mediacodec/main_swcodecservice.cpp
index a5db031..d91b788 100644
--- a/services/mediacodec/main_swcodecservice.cpp
+++ b/services/mediacodec/main_swcodecservice.cpp
@@ -33,11 +33,12 @@
 
 extern "C" void RegisterCodecServices();
 
-int main(int argc __unused, char** /*argv*/)
+int main(int argc __unused, char** argv)
 {
     LOG(INFO) << "media swcodec service starting";
     signal(SIGPIPE, SIG_IGN);
     SetUpMinijail(kSystemSeccompPolicyPath, kVendorSeccompPolicyPath);
+    strcpy(argv[0], "media.swcodec");
 
     ::android::hardware::configureRpcThreadpool(64, false);