Bump LINEAGE_PLATFORM_SDK_VERSION to 8

Change-Id: If78b28d3c018c7cd58b30e48efe631adbd70dd40
diff --git a/config/lineage_sdk_common.mk b/config/lineage_sdk_common.mk
index 11fe2d6..3296121 100644
--- a/config/lineage_sdk_common.mk
+++ b/config/lineage_sdk_common.mk
@@ -28,7 +28,7 @@
   # the SDK are released.  It should only be incremented when the APIs for
   # the new release are frozen (so that developers don't write apps against
   # intermediate builds).
-  LINEAGE_PLATFORM_SDK_VERSION := 7
+  LINEAGE_PLATFORM_SDK_VERSION := 8
 endif
 
 ifndef LINEAGE_PLATFORM_REV