[libosinfo] Add 'installer-reboots' attr. to RNG

["Zeeshan Ali (Khattak)" <zeeshanak@xxxxxxxxx>]

From: "Zeeshan Ali (Khattak)" <zeeshanak@xxxxxxxxx>

Last patches broke `make check`, this one fixes it.
---
 data/schemas/libosinfo.rng | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/data/schemas/libosinfo.rng b/data/schemas/libosinfo.rng
index 51c48d0..847c086 100644
--- a/data/schemas/libosinfo.rng
+++ b/data/schemas/libosinfo.rng
@@ -274,6 +274,11 @@
         </attribute>
       </optional>
       <optional>
+        <attribute name='installer-reboots'>
+          <ref name='num'/>
+        </attribute>
+      </optional>
+      <optional>
         <element name='url'>
           <ref name='url'/>
         </element>
-- 
1.7.12.1