bugfix: uaescsi.device was always enabled by default (#1570)

The target default options had "automount_cddrives" enabled, which in turn enabled uaescsi.device always.
However, that should not be enabled in all cases.

src/osdep/amiberry.cpp

@@ -2273,7 +2273,7 @@ void target_default_options(uae_prefs* p, const int type)
 		p->automount_removable = false;
 		//p->automount_drives = 0;
 		//p->automount_removabledrives = 0;
-		p->automount_cddrives = true;
+		p->automount_cddrives = false;
 		//p->automount_netdrives = 0;
 		p->picasso96_modeflags = RGBFF_CLUT | RGBFF_R5G6B5PC | RGBFF_B8G8R8A8;
 		//p->filesystem_mangle_reserved_names = true;