kbuild: drop vmlinux dependency from "make install"

This removes the dependency from vmlinux to install, thus avoiding the
current situation where "make install" has a nasty tendency to leave
root-turds in the working directory.

It also updates x86-64 to be in sync with i386.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index 8f6b90e..d3c0409 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -103,7 +103,7 @@
 boot := arch/i386/boot
 
 .PHONY: zImage bzImage compressed zlilo bzlilo \
-	zdisk bzdisk fdimage fdimage144 fdimage288 install kernel_install
+	zdisk bzdisk fdimage fdimage144 fdimage288 install
 
 all: bzImage
 
@@ -125,8 +125,7 @@
 fdimage fdimage144 fdimage288: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
 
-install: vmlinux
-install kernel_install:
+install:
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
 
 archclean: