Allow vendor-init-settable to persist.radio.multisim.config

A default value of persist.radio.multisim.config can be set by SoC
vendors, and so vendor-init-settable should be allowed to it.

Bug: 73871799
Test: succeeded building and tested with taimen
Change-Id: Ie62b91e7e3d7e05425b742838417f1cab7b3fed4
diff --git a/private/compat/26.0/26.0.ignore.cil b/private/compat/26.0/26.0.ignore.cil
index 0804851..403fde7 100644
--- a/private/compat/26.0/26.0.ignore.cil
+++ b/private/compat/26.0/26.0.ignore.cil
@@ -37,6 +37,7 @@
     exported2_system_prop
     exported2_vold_prop
     exported3_default_prop
+    exported3_radio_prop
     exported3_system_prop
     fs_bpf
     hal_authsecret_hwservice