Replace tests/src with framework/src

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/Makefile b/Makefile
index fb80529..d667810 100644
--- a/Makefile
+++ b/Makefile
@@ -199,7 +199,7 @@
 	library/*.[hc] \
 	programs/*/*.[hc] \
 	tests/include/*/*.h tests/include/*/*/*.h \
-	tests/src/*.c tests/src/*/*.c \
+	framework/src/*.c framework/src/*/*.c \
 	tests/suites/*.function \
 )
 # Exuberant-ctags invocation. Other ctags implementations may require different options.