Makefile.am : Add "embedded" tests to the "test-bt" target.

Makefile.am:
  The "test-bt" target was lacking "embedded" tests -
  add them, dependent on the build of the test binary needed for them.

Makefile.am

@@ -123,6 +123,11 @@ test-bt:
 	-cd mysql-test ; MTR_BUILD_THREAD=auto \
 	@PERL@ ./mysql-test-run.pl --comment=NDB            --force --timer \
 	--with-ndbcluster-only
+	-if [ -e bin/mysqltest_embedded -o -e libmysqld/examples/mysqltest_embedded ] ; then \
+	  cd mysql-test ; MTR_BUILD_THREAD=auto \
+	  @PERL@ ./mysql-test-run.pl --comment=embedded --force --timer \
+	    --embedded-server --skip-rpl --skip-ndbcluster ; \
+	fi
 	-cd mysql-test ; MTR_BUILD_THREAD=auto \
 	@PERL@ ./mysql-test-run.pl --force --comment=funcs1_ps --ps-protocol --suite=funcs_1
 	-cd mysql-test ; MTR_BUILD_THREAD=auto \