Fix Splinter Cell over UDPBD (and perhaps more games)

ee/loader/config/bsd-udpbd.toml

@@ -17,7 +17,11 @@ file = "DEV9.IRX"
 name = "dev9"
 replace = true
 version = 0x0208
-return = 0 # 0=RESIDENT_END, 1=NO_RESIDENT_END, 2=REMOVABLE_END
+# NOTE: dev9 returns 1 when there is NO network adapter connected.
+#       This fixes games that try to use the network but also prevents games
+#       from using the HDD.
+#       Change to 0 to allow games to use a real or emulated HDD
+return = 1 # 0=RESIDENT_END, 1=NO_RESIDENT_END, 2=REMOVABLE_END
 [[fake]]
 file = "SMAP.IRX"
 name = "INET_SMAP_driver"