attempt to fix RPM spec file after recent soversion bump

In I3bc0826c0000be4d76235ed6b5be86d216ea2e4d the soversion was
chhanged (e.g. libosmocore.so.16 to libosmocore.so.17) but the
spec.in file was not adjusted accordingly.

Change-Id: Id7e1e3feef6bda1a2d2a615a61635e22d550b5a3
diff --git a/contrib/libosmocore.spec.in b/contrib/libosmocore.spec.in
index b6791eb..df36e89 100644
--- a/contrib/libosmocore.spec.in
+++ b/contrib/libosmocore.spec.in
@@ -367,7 +367,7 @@
 
 %files -n libosmocore17
 %defattr(-,root,root)
-%_libdir/libosmocore.so.16*
+%_libdir/libosmocore.so.17*
 
 %files -n libosmocore-devel
 %defattr(-,root,root)
@@ -393,7 +393,7 @@
 
 %files -n libosmogb12
 %defattr(-,root,root)
-%_libdir/libosmogb.so.11*
+%_libdir/libosmogb.so.12*
 
 %files -n libosmogb-devel
 %defattr(-,root,root)
@@ -405,7 +405,7 @@
 
 %files -n libosmogsm16
 %defattr(-,root,root)
-%_libdir/libosmogsm.so.15*
+%_libdir/libosmogsm.so.16*
 
 %files -n libosmogsm-devel
 %defattr(-,root,root)
@@ -430,7 +430,7 @@
 
 %files -n libosmovty9
 %defattr(-,root,root)
-%_libdir/libosmovty.so.4*
+%_libdir/libosmovty.so.9*
 
 %files -n libosmovty-devel
 %defattr(-,root,root)