Allow vendor_init_settable for persist.sys.sf.native_mode

A default value of persist.sys.sf.native_mode could be set by SoC
partners in some devices including some pixels.
So it should have vendor_init_settable accessibility.

Bug: 74266614
Test: succeeded building and tested with a pixel device with
PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE=true.

Change-Id: I5d7a029f82505983d21dc722541fb55761a8714d

public/property_contexts

@@ -68,6 +68,7 @@ persist.dbg.wfc_avail_ovr u:object_r:exported3_default_prop:s0 exact int
 persist.radio.multisim.config u:object_r:exported3_radio_prop:s0 exact string
 persist.sys.dalvik.vm.lib.2 u:object_r:exported2_system_prop:s0 exact string
 persist.sys.sf.color_saturation u:object_r:exported2_system_prop:s0 exact string
+persist.sys.sf.native_mode u:object_r:exported2_system_prop:s0 exact bool
 pm.dexopt.ab-ota u:object_r:exported_pm_prop:s0 exact string
 pm.dexopt.bg-dexopt u:object_r:exported_pm_prop:s0 exact string
 pm.dexopt.boot u:object_r:exported_pm_prop:s0 exact string