Add linux_debpkg target

Makefile

@@ -48,6 +48,7 @@ help:
 	@echo '      linux (default)               - Builds the Linux kernel'
 	@echo '      linux_defconfig               - Builds the Linux kernel'
 	@echo '      linux_modules                 - Builds the Linux kernel modules'
+	@echo '      linux_debpkg                  - Creates a Debian package for the kernel'
 	@echo '      ack                           - Builds the Android Common Kernel'
 	@echo '      tools-vm                      - Builds linux/tools/vm'
 	@echo ''
@@ -211,6 +212,12 @@ ifndef VERSION
 endif
 	$(SCRIPT_DIR)/checkout_linux.sh $(VERSION) $(LINUX_SRC)
 
+# Use xz compression instead of zstd, as the latter is not supported by some
+# versions of dpkg.
+.PHONY: linux_debpkg
+linux_debpkg: $(KERNEL_IMAGE)
+	+ $(LINUX_MAKE) KDEB_COMPRESS=xz bindeb-pkg
+
 
 # These targets do the same thing as the `linux` targets, but because they're in
 # `ACK_TARGETS`, the `ACK` variable is set to 1 and the ACK source and output