Fix dbus configured build

configureDbus is an AC_DEFINE that gets set in config.h.
CONFIGURE_DBUS is only a AM_CONDITIONAL that does not
get propagated to source. Rename the variable so that hopefully
both builds work.

Tested-by: Navigated to oe-workdir and looked at config.h with
both --enable-configure-dbus set and not set and noticed
CONFIGURE_DBUS being switched from 1 to 0. Also used a #error
in the CONFIGURE_DBUS block and noticed it being set when
appropriate.

Change-Id: I248cd4b88a29b8e31df853c3709b8f648994b696
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/configure.ac b/configure.ac
index bf03958..46fa1b6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -73,8 +73,8 @@
     AS_HELP_STRING([--enable-configure-dbus], [Enable configuring pid from D-Bus.]))
 AM_CONDITIONAL(CONFIGURE_DBUS, [test "x$enable_configure_dbus" = "xyes"])
 AS_IF([test "x$enable_configure_dbus" = "xyes"],
-    [AC_DEFINE(configureDbus, [1], [Read configuration from D-Bus.])],
-    [AC_DEFINE(configureDbus, [0], [Do not read configuration from D-Bus.])]
+    [AC_DEFINE(CONFIGURE_DBUS, [1], [Read configuration from D-Bus.])],
+    [AC_DEFINE(CONFIGURE_DBUS, [0], [Do not read configuration from D-Bus.])]
 )
 
 # Create configured output