docs-rst: fix media cleandocs target

The builddir prefix was missing on make cleandocs. Fix it.

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>
Signed-off-by: Jonathan Corbet <[e-mail]>

Documentation/Makefile.sphinx

···
 
 cleandocs:
 	$(Q)rm -rf $(BUILDDIR)
-	$(Q)$(MAKE) -C Documentation/media clean
+	$(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) -C Documentation/media clean
 
 endif # HAVE_SPHINX
 

Documentation/media/Makefile

···
 latex: $(IMGPDF) all
 
 clean:
-	-rm -f $(DOTTGT) $(IMGTGT) $(patsubst %,$(SRC_DIR)/%,${TARGETS}) 2>/dev/null
+	-rm -f $(DOTTGT) $(IMGTGT) ${TARGETS} 2>/dev/null
 
 $(BUILDDIR):
 	$(Q)mkdir -p $@