configs/qemu_*: bump kernel version to 5.4.88

Bump QEMU defconfigs to latest longterm kernel 5.4.88.

Please note that QEMU boards not based on 5.4.y were ignored:
- qemu_csky810_virt_defconfig
- qemu_csky807_virt_defconfig
- qemu_csky610_virt_defconfig
- qemu_csky860_virt_defconfig

Tests were carried out on all QEMU boards using Gitlab [1] (commit
message was slightly different, but the patch is identical)

Additional actions needed were:
- board/qemu/sh4-r2d: Remove one of the two kernel patches [2] provided
  by Alan Modra fixing rodata alignment, carried here by Romain Naour [3]
  to fix an issue preventing kernel from booting with binutils 2.23.
  Patch is present in upstream Linux now.

[1] https://gitlab.com/clumsyape/buildroot/-/pipelines/239483891
[2] https://www.sourceware.org/ml/binutils/2019-12/msg00112.html
[3] https://git.busybox.net/buildroot/commit/?id=a2331c8a61bdd71c47492efc818fb0458a349219

Signed-off-by: Geoffrey Le Gourriérec <geoffrey.legourrierec@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

board/qemu/sh4-r2d/patches/linux/0002-include-asm-generic-vmlinux.lds.h.patch

@@ -1,32 +0,0 @@
-From 7f92adbba385a4e512abfd6633ac0f9f0cdf91f8 Mon Sep 17 00:00:00 2001
-From: Romain Naour <romain.naour@gmail.com>
-Date: Sat, 21 Dec 2019 11:54:07 +0100
-Subject: [PATCH] include/asm-generic: vmlinux.lds.h
-
-Building the kernel using a toolchain built with Binutils 2.33.1 prevent
-booting a sh4 system under Qemu.
-Apply the patch provided by Alan Modra [2] that fix alignment of rodata.
-
-[1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ebd2263ba9a9124d93bbc0ece63d7e0fae89b40e
-[2] https://www.sourceware.org/ml/binutils/2019-12/msg00112.html
-
-Signed-off-by: Romain Naour <romain.naour@gmail.com>
----
- include/asm-generic/vmlinux.lds.h | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
-index d7701d466b60..1aa33597e91e 100644
---- a/include/asm-generic/vmlinux.lds.h
-+++ b/include/asm-generic/vmlinux.lds.h
-@@ -306,6 +306,7 @@
-  */
- #ifndef RO_AFTER_INIT_DATA
- #define RO_AFTER_INIT_DATA						\
-+	. = ALIGN(8);							\
- 	__start_ro_after_init = .;					\
- 	*(.data..ro_after_init)						\
- 	__end_ro_after_init = .;
--- 
-2.24.1
-

board/qemu/sh4eb-r2d/patches/linux/0002-include-asm-generic-vmlinux.lds.h.patch

@@ -1,27 +0,0 @@
-From 7f92adbba385a4e512abfd6633ac0f9f0cdf91f8 Mon Sep 17 00:00:00 2001
-From: Romain Naour <romain.naour@gmail.com>
-Date: Sat, 21 Dec 2019 11:54:07 +0100
-Subject: [PATCH] include/asm-generic: vmlinux.lds.h
-
-https://www.sourceware.org/ml/binutils/2019-12/msg00112.html
-
-Signed-off-by: Romain Naour <romain.naour@gmail.com>
----
- include/asm-generic/vmlinux.lds.h | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
-index d7701d466b60..1aa33597e91e 100644
---- a/include/asm-generic/vmlinux.lds.h
-+++ b/include/asm-generic/vmlinux.lds.h
-@@ -306,6 +306,7 @@
-  */
- #ifndef RO_AFTER_INIT_DATA
- #define RO_AFTER_INIT_DATA						\
-+	. = ALIGN(8);							\
- 	__start_ro_after_init = .;					\
- 	*(.data..ro_after_init)						\
- 	__end_ro_after_init = .;
--- 
-2.24.1
-