nat46: update to git HEAD

9df230a Zero checksum handling  (openwrt#25)
7688102 skip generating a UDP4 csum if the UDP6 csum is 0 and zero_csum_pass is set
4a9e4b1 zero csum: avoid calling the checksum adjustment function if udp csum is zero
2de14c5 add a module argument to skip checksum adjust for UDP if checksum is zero

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

package/kernel/nat46/Makefile

@@ -3,11 +3,11 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=nat46
 
-PKG_MIRROR_HASH:=5cc35d11ad6937734f830be5e260eb17a7b0561e37f538e5fc99026d0f2ea517
+PKG_MIRROR_HASH:=aef3dae41e896c69b29d7fa3639c69f5a88db605a72dcd1133635980656a558c
 PKG_SOURCE_URL:=https://github.com/ayourtch/nat46.git
-PKG_SOURCE_DATE:=2020-08-17
+PKG_SOURCE_DATE:=2021-04-15
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_VERSION:=362640b41ae52b732d9e9729e61ac555492442a3
+PKG_SOURCE_VERSION:=9df230a143477e8bc86968114439ee748ac9fd21
 
 PKG_MAINTAINER:=Hans Dedecker <dedeckeh@gmail.com>
 PKG_LICENSE:=GPL-2.0