s390x: build s390x by default

This patch enables building of s390x-softmmu and s390x-linux-user
targets by default.

Signed-off-by: Alexander Graf <agraf@suse.de>

configure

diff --git a/configure b/configure
index d7dba5d..bc54293 100755
--- a/configure
+++ b/configure
@@ -848,6 +848,7 @@
 sh4eb-softmmu \
 sparc-softmmu \
 sparc64-softmmu \
+s390x-softmmu \
 "
 fi
 # the following are Linux specific
@@ -873,6 +874,7 @@
 sparc64-linux-user \
 sparc32plus-linux-user \
 unicore32-linux-user \
+s390x-linux-user \
 "
 fi
 # the following are Darwin specific

default-configs/s390x-linux-user.mak

diff --git a/default-configs/s390x-linux-user.mak b/default-configs/s390x-linux-user.mak
new file mode 100644
index 0000000..a243c99
--- /dev/null
+++ b/default-configs/s390x-linux-user.mak
@@ -0,0 +1 @@
+# Default configuration for s390x-linux-user