Add GEA3 & GEA4 ciphers

Corresponding test code include both official test vectors from the
specs and data from over-the-air tests.

This obsoletes libosmo-crypt-a53 as it was last missing piece
unimplemented in libosmogsm.

Change-Id: I939e4f6b91b4a7c591ef3761fe2d46ed1c2fb2d3
Related: OS#1582
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 93373c1..0c7edf1 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -45,6 +45,12 @@
 AT_CHECK([$abs_top_builddir/tests/msgb/msgb_test], [0], [expout], [ignore])
 AT_CLEANUP
 
+AT_SETUP([gea])
+AT_KEYWORDS([gea])
+cat $abs_srcdir/gea/gea_test.ok > expout
+AT_CHECK([$abs_top_builddir/tests/gea/gea_test], [0], [expout])
+AT_CLEANUP
+
 if ENABLE_MSGFILE
 AT_SETUP([msgfile])
 AT_KEYWORDS([msgfile])