rp-pppoe: update SRC_URI

Upstream repository url changed.

Fixes unsuccessful fetch warning.

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-protocols/rp-pppoe/rp-pppoe_3.15.bb

@@ -5,7 +5,7 @@ LICENSE = "GPL-2.0-only"
 LIC_FILES_CHKSUM = "file://doc/LICENSE;md5=a194eaefae2be54ee3221339b10d0581"
 
 
-SRC_URI = "https://dianne.skoll.ca/projects/rp-pppoe/download/OLD/rp-pppoe-${PV}.tar.gz \
+SRC_URI = "https://downloads.uls.co.za/rp-pppoe/rp-pppoe-${PV}.tar.gz \
            file://top-autoconf.patch \
            file://configure_in_cross.patch \
            file://update-config.patch \