sm6250-common: props: Add aux camera packagelist prop to system props

 * its now labelled as system prop, so cant be set from
   vendor props anymore as its a neverallow.

Change-Id: I336a44cdba0b6de53666962b013d85c546e67646

system.prop

@@ -97,6 +97,9 @@ persist.sys.media.use-awesome=1
 ro.audio.samplerate=48000
 ro.audio.pcm.samplerate=48000
 
+# Camera
+vendor.camera.aux.packagelist=org.lineageos.snap,com.android.camera
+
 # CNE
 persist.vendor.cne.feature=1