feeds: use git-src-full to allow Git versioning

Both $(AUTORELEASE) and $(PKG_SRC_VERSION) (from luci.git) use the Git
log to determine releases and package timestamps.

Feeds are shallow cloned by default, resulting in an incomplete Git log
and therefore different local package versions than offered upstream.

This commits sets the default feeds to use `src-git-full` to solve that.

Add fixes from "2b1d92f: scripts/feeds: silence git warning by selecting
pull style" to `src-git-full`

Signed-off-by: Paul Spooren <mail@aparcar.org>
(cherry picked from commit 7fae1e5677)

feeds.conf.default

@@ -1,5 +1,5 @@
-src-git packages https://git.openwrt.org/feed/packages.git;openwrt-21.02
-src-git luci https://git.openwrt.org/project/luci.git;openwrt-21.02
-src-git routing https://git.openwrt.org/feed/routing.git;openwrt-21.02
-src-git telephony https://git.openwrt.org/feed/telephony.git;openwrt-21.02
+src-git-full packages https://git.openwrt.org/feed/packages.git;openwrt-21.02
+src-git-full luci https://git.openwrt.org/project/luci.git;openwrt-21.02
+src-git-full routing https://git.openwrt.org/feed/routing.git;openwrt-21.02
+src-git-full telephony https://git.openwrt.org/feed/telephony.git;openwrt-21.02
 #src-link custom /usr/src/openwrt/custom-feed

scripts/feeds

@@ -167,8 +167,8 @@ my %update_method = (
 		'init'          => "git clone '%s' '%s'",
 		'init_branch'   => "git clone --branch '%s' '%s' '%s'",
 		'init_commit'   => "git clone '%s' '%s' && cd '%s' && git checkout -b '%s' '%s' && cd -",
-		'update'	=> "git pull --ff",
-		'update_force'	=> "git pull --ff || (git reset --hard HEAD; git pull --ff; exit 1)",
+		'update'	=> "git pull --ff-only",
+		'update_force'	=> "git pull --ff-only || (git reset --hard HEAD; git pull --ff-only; exit 1)",
 		'post_update'	=> "git submodule update --init --recursive",
 		'controldir'	=> ".git",
 		'revision'	=> "git rev-parse --short HEAD | tr -d '\n'"},