doc/manuals: set OSMO_REPOSITORY

Fix uploading manuals to the wrong directory.

Related: OS#5902
Change-Id: Ia9935e176ee7633270ccd2926d60d7f8cea822f8

doc/manuals/Makefile

@@ -5,4 +5,5 @@ ASCIIDOC = osmo-gsm-tester-manual.adoc
 ASCIIDOC_DEPS = $(srcdir)/chapters/*.adoc
 include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.asciidoc.inc
 
+OSMO_REPOSITORY = osmo-gsm-tester
 include $(OSMO_GSM_MANUALS_DIR)/build/Makefile.common.inc