base-passwd: Add kvm group

Although base-passwd in OE is somewhat outdated, upgrading
to a newer version is not going to solve eudev warnings about
missing groups during boot; input/shutdown/kvm are still not
listed in groups.master. The reason for this is that
Debian uses systemd, which will automatically create
missing groups(systemd-sysusers). In a sysvinit+eudev
configuration you instead get a warning printed to
the console:

  udevd[<pid>]: specified group 'kvm' unknown

(From OE-Core rev: 76caed136b819522b908a2bee7b81103bd2ea7e4)

Signed-off-by: Jacob Kroon <jacob.kroon@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/base-passwd/base-passwd/kvm.patch

@@ -0,0 +1,23 @@
+From 6355278b9f744291864c373a32a8da8f84aaaf37 Mon Sep 17 00:00:00 2001
+From: Jacob Kroon <jacob.kroon@gmail.com>
+Date: Wed, 30 Jan 2019 04:53:48 +0000
+Subject: [PATCH] Add kvm group
+
+Upstream-Status: Pending
+Signed-off-by: Jacob Kroon <jacob.kroon@gmail.com>
+---
+ group.master | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/group.master b/group.master
+index cea9d60..5b62284 100644
+--- a/group.master
++++ b/group.master
+@@ -34,6 +34,7 @@ utmp:*:43:
+ video:*:44:
+ sasl:*:45:
+ plugdev:*:46:
++kvm:*:47:
+ staff:*:50:
+ games:*:60:
+ shutdown:*:70:

meta/recipes-core/base-passwd/base-passwd_3.5.29.bb

@@ -12,7 +12,8 @@ SRC_URI = "https://launchpad.net/debian/+archive/primary/+files/${BPN}_${PV}.tar
            file://noshadow.patch \
            file://input.patch \
            file://disable-docs.patch \
-          "
+           file://kvm.patch \
+           "
 
 SRC_URI[md5sum] = "6beccac48083fe8ae5048acd062e5421"
 SRC_URI[sha256sum] = "f0b66388b2c8e49c15692439d2bee63bcdd4bbbf7a782c7f64accc55986b6a36"