bitbake: cache.py: check existence before add to cachedata.rproviders

The rprovides maybe contain duplicated lines when parse again, we need
check it before add to cachedata.rproviders, similar to what we had done
to cachedata.providers.

(Bitbake rev: 6c488afb0fe30a9655ec62a1d22f9f388365f012)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/cache.py

@@ -214,7 +214,8 @@ class CoreRecipeInfo(RecipeInfoCommon):
             rprovides += self.rprovides_pkg[package]
 
         for rprovide in rprovides:
-            cachedata.rproviders[rprovide].append(fn)
+            if fn not in cachedata.rproviders[rprovide]:
+                cachedata.rproviders[rprovide].append(fn)
 
         for package in self.packages_dynamic:
             cachedata.packages_dynamic[package].append(fn)