keepalived: upgrade to version 1.2.19

Dropped patches, unrequired.
There is a newer version released, but I cannot vouch for it yet.
We've been using this one for about a year now.

Since, I only recently became maintainer of `keepalived`, I will
push this as the current stable one, and start using a newer
version internally, before releasing it to the public.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

net/keepalived/patches/100-musl-compat.patch

@@ -1,10 +0,0 @@
---- a/lib/utils.h
-+++ b/lib/utils.h
-@@ -31,6 +31,7 @@
- #include <arpa/inet.h>
- #include <arpa/nameser.h>
- #include <sys/param.h>
-+#include <sys/types.h>
- #include <sys/utsname.h>
- #include <netdb.h>
- 

net/keepalived/patches/101-update-struct-msghdr.patch

@@ -1,43 +0,0 @@
-From 0fc8dfa7ef479220b2a27901c5c69add6e13debd Mon Sep 17 00:00:00 2001
-From: Stijn Tintel <stijn@linux-ipv6.be>
-Date: Tue, 10 May 2016 04:26:31 +0300
-Subject: [PATCH] vrrp: update struct msghdr
-
-The vrrp netlink code assumes an order for the members of struct msghdr.
-This breaks recvmsg and sendmsg with musl libc on mips64. Fix this by
-using designated initializers instead.
----
- keepalived/vrrp/vrrp_netlink.c | 15 ++++++++++++---
- 1 file changed, 12 insertions(+), 3 deletions(-)
-
---- a/keepalived/vrrp/vrrp_netlink.c
-+++ b/keepalived/vrrp/vrrp_netlink.c
-@@ -276,8 +276,12 @@ netlink_parse_info(int (*filter) (struct
-		char buf[4096];
-		struct iovec iov = { buf, sizeof buf };
-		struct sockaddr_nl snl;
--		struct msghdr msg =
--		    { (void *) &snl, sizeof snl, &iov, 1, NULL, 0, 0 };
-+		struct msghdr msg = {
-+			.msg_name = &snl,
-+			.msg_namelen = sizeof(snl),
-+			.msg_iov = &iov,
-+			.msg_iovlen = 1,
-+		};
-		struct nlmsghdr *h;
-
-		status = recvmsg(nl->fd, &msg, 0);
-@@ -386,7 +390,12 @@ netlink_talk(nl_handle_t *nl, struct nlm
-	int ret, flags;
-	struct sockaddr_nl snl;
-	struct iovec iov = { (void *) n, n->nlmsg_len };
--	struct msghdr msg = { (void *) &snl, sizeof snl, &iov, 1, NULL, 0, 0 };
-+	struct msghdr msg = {
-+		.msg_name = &snl,
-+		.msg_namelen = sizeof(snl),
-+		.msg_iov = &iov,
-+		.msg_iovlen = 1,
-+	};
-
-	memset(&snl, 0, sizeof snl);
-	snl.nl_family = AF_NETLINK;