package/stress-ng: fix install commande

Don't use make install otherwise stress-ng will be rebuild without
required link libraries if any. Furthermore, using INSTALL allow to
set the file permission correcly on the target.

Fixes:
http://autobuild.buildroot.net/results/bba/bba4d0b635ab6849f969b8a0363ebe9f5fafd82e

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/stress-ng/stress-ng.mk

@@ -15,8 +15,11 @@ define STRESS_NG_BUILD_CMDS
 	$(TARGET_CONFIGURE_OPTS) $(MAKE) -C $(@D)
 endef
 
+# Don't use make install otherwise stress-ng will be rebuild without
+# required link libraries if any. Furthermore, using INSTALL allow to
+# set the file permission correcly on the target.
 define STRESS_NG_INSTALL_TARGET_CMDS
-	$(TARGET_CONFIGURE_OPTS) $(MAKE) DESTDIR=$(TARGET_DIR) -C $(@D) install
+	$(INSTALL) -m 0755 -D $(@D)/stress-ng $(TARGET_DIR)/usr/bin/stress-ng
 endef
 
 $(eval $(generic-package))