kmod-sched-cake: fix parameter passing kernel/user space

The last two parameters passed between user space tc and kernel space
sched-cake were transposed due to a merge mistake in a parameter header
file.

As such, using a packet overhead figure was likely to set cake to wash
packet DSCP values.  Similarly, the DSCP wash flag was used as an offset
to the displayed packet overhead value.

Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>

package/kernel/kmod-sched-cake/Makefile

@@ -13,9 +13,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/kdarbyshirebryant/sch_cake.git
-PKG_SOURCE_DATE:=2016-12-19
-PKG_SOURCE_VERSION:=70c8eb766d5afcf3cf187594b7cd776da92bee3c
-PKG_MIRROR_HASH:=16174db5dad0a5b5ba522d4cfc058cff9851ed013a3a05166b04eb127bb12a24
+PKG_SOURCE_DATE:=2017-01-21
+PKG_SOURCE_VERSION:=69449f3c554e93bd9f7a9b708c808d11fe5dba74
+PKG_MIRROR_HASH:=51dcce8b78e3690296aff1fc22f939b4b73904b9c1d21a583d7d6af803926fac
 PKG_MAINTAINER:=Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
 
 include $(INCLUDE_DIR)/package.mk