package/tipidee: load config from /etc instead of /usr/etc

--prefix influences the default of --sysconfdir, so we need to specify
--sysconfdir=/etc explicitly.

Fixes: 17deaf60f6 ("tipidee: new package")
Signed-off-by: J. Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/tipidee/tipidee.mk

@@ -12,6 +12,7 @@ TIPIDEE_DEPENDENCIES = skalibs
 
 TIPIDEE_CONF_OPTS = \
 	--prefix=/usr \
+	--sysconfdir=/etc \
 	--with-sysdeps=$(STAGING_DIR)/lib/skalibs/sysdeps \
 	--with-include=$(STAGING_DIR)/include \
 	--with-dynlib=$(STAGING_DIR)/lib \