isdnhdlc: Port from kernel to userspace

* prefix all symbols/constants with osmo_
* use stdint.h types instead of kernel types
* use Doxygen API documentation
* use Osmocom CRC16-CCITT functions
* use Osmocom bit-reversal functions
* integrate with Automake

Change-Id: I109085ab3e412c20b19cd42fb7137aa0e4167542
diff --git a/include/Makefile.am b/include/Makefile.am
index f82012f..27a4090 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -26,6 +26,7 @@
                        osmocom/core/fsm.h \
                        osmocom/core/gsmtap.h \
                        osmocom/core/gsmtap_util.h \
+                       osmocom/core/isdnhdlc.h \
                        osmocom/core/linuxlist.h \
                        osmocom/core/linuxrbtree.h \
                        osmocom/core/logging.h \