package/cni-plugin: simplify installation

In all theory, we could iterate over CNI_PLUGINS_INSTALL_BINS, which
already contains the basenames $(notdir) of the binaries to install,
but *_INSTALL_BINS is now an internal implementation detail, and
can't be guaranteed to be stable.

Hence, iterate over the list of targets, and somewhat duplicate the
install commands from the infra, using make's $(notdir) rather than
calling to the shell's to call basename.

Note: we need to stop setting _INSTALL_BINS, as a following commit will
check that it is not explicitly set, and fail otherwise.

Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Cc: Christian Stewart <christian@aperture.us>
Reviewed-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Romain Naour <romain.naour@smile.fr>

package/cni-plugins/cni-plugins.mk

@@ -28,7 +28,6 @@ CNI_PLUGINS_BUILD_TARGETS = \
 	plugins/meta/sbr \
 	plugins/meta/tuning \
 	plugins/meta/vrf
-CNI_PLUGINS_INSTALL_BINS = $(CNI_PLUGINS_BUILD_TARGETS)
 
 ifeq ($(BR2_PACKAGE_LIBAPPARMOR),y)
 CNI_PLUGINS_DEPENDENCIES += libapparmor
@@ -47,9 +46,9 @@ endif
 
 define CNI_PLUGINS_INSTALL_TARGET_CMDS
 	$(INSTALL) -d -m 0755 $(TARGET_DIR)/opt/cni/bin
-	$(foreach d,$(CNI_PLUGINS_INSTALL_BINS),\
-		$(INSTALL) -D -m 0755 $(@D)/bin/$$(basename $(d)) \
-			$(TARGET_DIR)/opt/cni/bin
+	$(foreach d,$(CNI_PLUGINS_BUILD_TARGETS),\
+		$(INSTALL) -D -m 0755 $(@D)/bin/$(notdir $(d)) \
+			$(TARGET_DIR)/opt/cni/bin/$(notdir $(d))
 	)
 endef