systemd: bring back the patch to customise root's $HOME

This patch appears to have been accidently dropped in the move to 219-stable,
probably because it didn't apply.  Update the patch and re-add it.

(From OE-Core rev: 51aaa647b203d0f7ddd2f53f7191c4d2918b09b8)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/systemd/systemd/0010-Make-root-s-home-directory-configurable.patch

@@ -26,10 +26,11 @@ diff --git a/Makefile.am b/Makefile.am
 index 0fb3f9f..4623963 100644
 --- a/Makefile.am
 +++ b/Makefile.am
-@@ -199,6 +199,7 @@ AM_CPPFLAGS = \
+@@ -199,7 +199,8 @@ AM_CPPFLAGS = \
  	-DKEXEC=\"$(KEXEC)\" \
  	-DLIBDIR=\"$(libdir)\" \
  	-DROOTLIBDIR=\"$(rootlibdir)\" \
+ 	-DROOTLIBEXECDIR=\"$(rootlibexecdir)\" \
 +	-DROOTHOMEDIR=\"$(roothomedir)\" \
  	-DTEST_DIR=\"$(abs_top_srcdir)/test\" \
  	-I $(top_srcdir)/src \

meta/recipes-core/systemd/systemd_219.bb

@@ -38,6 +38,7 @@ SRC_URI = "git://anongit.freedesktop.org/systemd/systemd-stable;branch=v219-stab
            file://0007-util-Use-mkostemp-only-if-libc-supports-it.patch \
            file://0008-util-bypass-unimplemented-_SC_PHYS_PAGES-system-conf.patch \
            file://0009-sysv-generator-add-support-for-executing-scripts-und.patch \
+           file://0010-Make-root-s-home-directory-configurable.patch \
            file://0011-systemd-user-avoid-using-system-auth.patch \
            file://0012-systemd-tmpfiles.c-Honor-ordering-within-files-as-th.patch \
            file://0014-Revert-rules-remove-firmware-loading-rules.patch \