Increase tombstone count

BUG: 74565727
Test: local build and boot
Change-Id: Ifde5b0710c762eff4dc2125bb7c269d44ab5ea64
diff --git a/shared/device.mk b/shared/device.mk
index 410e0c6..0957030 100644
--- a/shared/device.mk
+++ b/shared/device.mk
@@ -22,6 +22,7 @@
 #   debug.hwui.swap_with_damage avoids boot failure on M http://b/25152138
 #   ro.opengles.version OpenGLES 2.0
 PRODUCT_PROPERTY_OVERRIDES += \
+    tombstoned.max_tombstone_count=500 \
     debug.hwui.swap_with_damage=0 \
     ro.adb.qemud=0 \
     ro.carrier=unknown \