Enable suspend for mainline charger

Bug: 80410283
Test: make
Change-Id: I09efa8dd557d586424c342772925b9ab2940bc88
diff --git a/target/board/BoardConfigMainlineCommon.mk b/target/board/BoardConfigMainlineCommon.mk
index e87bd5e..e13317f 100644
--- a/target/board/BoardConfigMainlineCommon.mk
+++ b/target/board/BoardConfigMainlineCommon.mk
@@ -37,3 +37,5 @@
 
 BOARD_AVB_ENABLE := true
 BOARD_AVB_ROLLBACK_INDEX := $(PLATFORM_SECURITY_PATCH_TIMESTAMP)
+
+BOARD_CHARGER_ENABLE_SUSPEND := true