Radio Sap 1.2 default implementation

Checked points:
- service is on
- vts can run on it
- provided a dummy implementation that a VTS test can pass it
- applied with recent update in radio 1.2 hal
- format repaired
- pass on a 1.0 VTS test, a 1.1 VTS test, and a 1.2 VTS test

Bug: 74114758
Test: run vts

Change-Id: I8a052e3cedb41db9028552ab88f1e26492718497
diff --git a/radio/1.2/default/android.hardware.radio@1.2-sap-service.rc b/radio/1.2/default/android.hardware.radio@1.2-sap-service.rc
new file mode 100644
index 0000000..845e6e5
--- /dev/null
+++ b/radio/1.2/default/android.hardware.radio@1.2-sap-service.rc
@@ -0,0 +1,4 @@
+service vendor.sap-1-2 /vendor/bin/hw/android.hardware.radio@1.2-sap-service
+    class hal
+    user system
+    group system