version: Separate major and minor version components and use macro to set them.

This is a pretty common pattern AFAIK.

Signed-off-by: Philip Tricca <philip.b.tricca@intel.com>
diff --git a/configure.ac b/configure.ac
index ea74dca..7024053 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,8 @@
-AC_INIT([tpm2.0-tss], [0.98])
+m4_define([tpm20_major_version], [0])
+m4_define([tpm20_minor_version], [98])
+m4_define([tpm20_version_string], [tpm20_major_version.tpm20_minor_version])
+
+AC_INIT([tpm2.0-tss], [tpm20_version_string])
 AC_CONFIG_MACRO_DIR([m4])
 AC_PROG_CC
 AC_PROG_CXX