sanders: Clear the recovery cache in persist on boot

* Due to the way newer TWRP versions are behaving, our relatively small
  persist partition gets overfilled with recovery logs very quickly.
* Let's just remove the recovery cache from persist on every boot to be sure
  that we always have enough space for anything that writes to persist.

Signed-off-by: EsromTech <esromgalaxy5@gmail.com>

rootdir/etc/init.qcom.rc

@@ -472,6 +472,9 @@ on post-fs-data
     write /sys/bus/msm_subsys/devices/subsys3/restart_level related
     write /sys/bus/msm_subsys/devices/subsys4/restart_level related
 
+    # Remove recovery cache from persist
+    rm -rf /mnt/vendor/persist/cache/recovery
+
     # Create vpp directory
     mkdir /data/vendor/vpp 0770 media media