Move the libssh setup from configure to meson.build

It's easier to do this in meson.build now.

Message-Id: <20211209144801.148388-1-thuth@redhat.com>
Acked-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
diff --git a/meson_options.txt b/meson_options.txt
index e392323..4114bfc 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -105,6 +105,8 @@
        description: 'libdaxctl support')
 option('libpmem', type : 'feature', value : 'auto',
        description: 'libpmem support')
+option('libssh', type : 'feature', value : 'auto',
+       description: 'ssh block device support')
 option('libudev', type : 'feature', value : 'auto',
        description: 'Use libudev to enumerate host devices')
 option('libusb', type : 'feature', value : 'auto',