Revert "RM6785: Do not override build fingerprint"

This reverts commit 1f12ba3ec2e651a085432e5a6faff615b43ab7cc.

Change-Id: I99483e4ac80c9191cdcbeb4566ff014c2897ae28
diff --git a/leaf_RM6785.mk b/leaf_RM6785.mk
index aa947e8..7833314 100644
--- a/leaf_RM6785.mk
+++ b/leaf_RM6785.mk
@@ -21,3 +21,5 @@
 PRODUCT_MODEL := RM6785
 PRODUCT_MANUFACTURER := realme
 PRODUCT_GMS_CLIENTID_BASE := android-oppo
+
+BUILD_FINGERPRINT := "realme/RMX2001/RMX2001L1:10/QP1A.190711.020/1594211000:user/release-keys"