ppp: update to latest git HEAD

af30be0 Fix setting prefix for IPv6 link-local addresss
0314df4 Disable asking password again when prompt program returns 128

Signed-off-by: Hans Dedecker <[email protected]>

package/network/services/ppp/Makefile

@@ -13,9 +13,9 @@ PKG_RELEASE:=2
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/paulusmack/ppp
-PKG_SOURCE_DATE:=2020-08-07
-PKG_SOURCE_VERSION:=045169401601639b9163e1df00f868a0a49131ce
-PKG_MIRROR_HASH:=0ceb3e649d191c1fe225be580135aa181d9d3ba3689503691c4c9469ddac64a3
+PKG_SOURCE_DATE:=2020-09-04
+PKG_SOURCE_VERSION:=fc0a76c87a123e65b4922008257f5878251f9323
+PKG_MIRROR_HASH:=c3ad8dc7922f628b4b33405e60b4add4d7c8b76ca6086a1782774c96da9eecba
 PKG_MAINTAINER:=Felix Fietkau <[email protected]>
 PKG_LICENSE:=BSD-4-Clause
 PKG_CPE_ID:=cpe:/a:samba:ppp