core/pkg-generic: also list files installed in images/

Some packages install nothing in target nor staging, but install images
(like the kernel vmlinux, or a bootloader boot blob...)

If we want to appropriately account for the files installed by each
package, we also need to take images/ into account.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 5d00fecb7dd922ae2c003b46683173756372fd14)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/pkg-generic.mk

@@ -252,6 +252,7 @@ $(BUILD_DIR)/%/.stamp_configured:
 	$(call prepare-per-package-directory,$($(PKG)_FINAL_DEPENDENCIES))
 	@$(call pkg_size_before,$(TARGET_DIR))
 	@$(call pkg_size_before,$(STAGING_DIR),-staging)
+	@$(call pkg_size_before,$(BINARIES_DIR),-images)
 	@$(call pkg_size_before,$(HOST_DIR),-host)
 	$(call fixup-libtool-files,$(NAME),$(HOST_DIR))
 	$(call fixup-libtool-files,$(NAME),$(STAGING_DIR))
@@ -378,6 +379,7 @@ $(BUILD_DIR)/%/.stamp_target_installed:
 $(BUILD_DIR)/%/.stamp_installed:
 	@$(call pkg_size_after,$(TARGET_DIR))
 	@$(call pkg_size_after,$(STAGING_DIR),-staging)
+	@$(call pkg_size_after,$(BINARIES_DIR),-images)
 	@$(call pkg_size_after,$(HOST_DIR),-host)
 	@$(call check_bin_arch)
 	$(Q)touch $@