x86/boot/compressed: Remove unused header includes from kaslr.c

JIRA: https://issues.redhat.com/browse/RHEL-110658

Conflicts:
  - Minor context diff due to missing upstream commit
    2df8220 ("kbuild: build init/built-in.a just once")

This patch is a backport of the following upstream commit:
commit 5daecec
Author: Borislav Petkov (AMD) <bp@alien8.de>
Date:   Sat Nov 30 13:26:44 2024 +0100

    x86/boot/compressed: Remove unused header includes from kaslr.c

    Nothing is using the linux/ namespace headers anymore. Remove them.

    Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
    Link: https://lore.kernel.org/r/20241130122644.GAZ0sEhD3Bm_9ZAIuc@fat_crate.local

Signed-off-by: Ricardo Robaina <rrobaina@redhat.com>

Author: rprobaina

arch/x86/boot/compressed/kaslr.c

@@ -25,10 +25,6 @@
 #include "efi.h"
 
 #include <generated/compile.h>
-#include <linux/module.h>
-#include <linux/uts.h>
-#include <linux/utsname.h>
-#include <linux/ctype.h>
 #include <generated/utsrelease.h>
 
 #define _SETUP