Update Coral SVN to 22

Bug: 153882927
Change-Id: I9ee47ead9a2052184d994e9ed2d1cb9b6e54701c
(cherry picked from commit 2e04b052e8292b3f1f378a93abc1e228d6a818fd)
diff --git a/device.mk b/device.mk
index 9380387..e382376 100644
--- a/device.mk
+++ b/device.mk
@@ -944,7 +944,7 @@
 
 # Increment the SVN for any official public releases
 PRODUCT_PROPERTY_OVERRIDES += \
-	ro.vendor.build.svn=21
+	ro.vendor.build.svn=22
 
 PRODUCT_COPY_FILES += \
     $(LOCAL_PATH)/powerhint.json:$(TARGET_COPY_OUT_VENDOR)/etc/powerhint.json