Update Linux kernel configuration & patches

This updates the Linux kernel configuration, removing irrelevant
networking-related components, and switching framebuffer drivers to
the DRM-based ones. With this, we can finally bootstrap on systems
with newer NVIDIA cards, which would green screen with the nvidiafb
driver.

KVM is still disabled, see #443 - VIRTUALIZATION is also disabled,
as it's useless without KVM or any other suboption being enabled.

Additionally, we can now drop the bad-asm patch, since our newer
binutils has no problem supporting that syntax, and it doesn't look
quite innocuous to me, removing an offset from a memory access.

The kernel is now built in 2 stages: first, we build vmlinux only,
then, after cleaning up any intermediate .o files (except the ones
needed to build efistub), we convert it to a bzImage. This required
some creative use of the -o option to convince Make not to rebuild
all of the .o files we've just deleted as dependencies.

steps/linux-4.14.336/pass1.sh

@@ -1,5 +1,6 @@
 # SPDX-FileCopyrightText: 2021-22 fosslinux <fosslinux@aussies.space>
 # SPDX-FileCopyrightText: 2022 Andrius Štikonas <andrius@stikonas.eu>
+# SPDX-FileCopyrightText: 2024 Gábor Stefanik <netrolller.3d@gmail.com>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -43,10 +44,19 @@ src_compile() {
 
     # Allow use of patched initramfs_list.sh (which is required anyway)
     make "${MAKEJOBS}" ARCH=i386 prepare
-    PATH="${PWD}/usr:${PATH}" make "${MAKEJOBS}" ARCH=i386
+
+    # Build just the vmlinux, because a full build will not fit our ramdisk
+    PATH="${PWD}/usr:${PATH}" make "${MAKEJOBS}" ARCH=i386 vmlinux
 
     # Clear up more space
+    find . -name '*.o' -not -path './drivers/firmware/efi/libstub/*' -delete
+
+    # Now that we have space, build bzImage, taking care not to rebuild what we've just deleted
+    PATH="${PWD}/usr:${PATH}" make "${MAKEJOBS}" ARCH=i386 -o vmlinux bzImage
+
+    # Clear up one more time
     find . -name '*.o' -delete
+    rm vmlinux
 }
 
 src_install() {