tests: install the test list

Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>

tests/Makefile.am

@@ -5,8 +5,6 @@ if HAVE_NOUVEAU
 endif
 
 if BUILD_TESTS
-all-local: test-list.txt
-
 test-list.txt: Makefile.sources
 	@echo TESTLIST > $@
 	@echo ${single_kernel_tests} ${multi_kernel_tests} >> $@
@@ -34,6 +32,8 @@ dist_pkgdata_DATA = \
 	$(IMAGES) \
 	$(NULL)
 
+pkgdata_DATA = test-list.txt
+
 EXTRA_PROGRAMS = $(HANG)
 EXTRA_DIST = $(common_files)