wireshark: rebase the patches, rename and add a README

Add a short README mentioning the svn version they apply
to, how to rebase them in the future, and what they do.

The renaming is done to add a hint on in which order to
apply them. The abis_oml patch has been updated to some
value_string changes in epan, all patches now add the new
files to the CMakeLists.txt of epan as well.
diff --git a/wireshark/README b/wireshark/README
new file mode 100644
index 0000000..3a28fcf
--- /dev/null
+++ b/wireshark/README
@@ -0,0 +1,19 @@
+These are patches to wireshark to add/enhance the GSM support.
+
+== Basic ==
+The patches apply to SVN revision r35476 and were created
+using git format-patch. They can be either applied via the
+patch command or using git am on a git clone of wireshark.
+
+
+== Rebasing with git ==
+It is the easiest to checkout the above revision, apply the
+patches and then use git rebase git-svn to get to the latest
+svn version. 
+
+== patches ==
+0001-abis_oml.patch               Add support for Abis OML
+0002-ericsson_rbs2409.patch       Add support for Ericsson Abis over IP
+0003-lucent-hnb.patch             Add support for Lucent HomeNodeB
+0004-rsl-ipaccess.patch           Add IPaccess RSL extensions
+