boot/edk2: bump to version edk2-stable202508

For release notes since edk2-stable202505, see:
https://github.com/tianocore/edk2/releases/tag/edk2-stable202508

This commit also updates the edk2-platforms packages with the last
commit merged at the edk2 release date (2025-08-12), which corresponds
to commit [1].
The edk2-non-osi package is not updated because it did not received
any commit since the last edk2 bump.

This commit has been runtime tested with tests using EDK2 package,
with commands:

    support/testing/run-tests \
        -d dl -o output_folder \
            tests.boot.test_edk2 \
            tests.boot.test_grub.TestGrubAArch64EFI \
            tests.boot.test_grub.TestGrubi386EFI \
            tests.boot.test_grub.TestGrubRiscV64EFI \
            tests.boot.test_grub.TestGrubX8664EFI \
            tests.fs.test_iso9660.TestIso9660Grub2EFI \
            tests.fs.test_iso9660.TestIso9660Grub2Hybrid \
            tests.package.test_fwts

It has also been runtime tested (by booting in qemu) with defconfigs
using EDK2 package:
qemu_aarch64_sbsa_defconfig
qemu_loongarch64_virt_efi_defconfig
qemu_riscv64_virt_efi_defconfig

[1] https://github.com/tianocore/edk2-platforms/commit/d1b297b2aa693fc723ac883866c925e9d04260c9

Cc: Dick Olsson <hi@senzilla.io>
Cc: Romain Naour <romain.naour@smile.fr>
Cc: Vincent Stehlé <vincent.stehle@arm.com>
Tested-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

boot/edk2/edk2.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  e05130e107d476cdec0846f55f22e00fb2cc0030b60fafce464a6cf10134d18d  edk2-edk2-stable202505-git4.tar.gz
+sha256  1e675a98f6bcf81fbae1141779b9e72ec28773d0e5ec77bdcc890f14502615a4  edk2-edk2-stable202508-git4.tar.gz
 sha256  50ce20c9cfdb0e19ee34fe0a51fc0afe961f743697b068359ab2f862b494df80  License.txt

boot/edk2/edk2.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-EDK2_VERSION = edk2-stable202505
+EDK2_VERSION = edk2-stable202508
 EDK2_SITE = https://github.com/tianocore/edk2
 EDK2_SITE_METHOD = git
 EDK2_LICENSE = BSD-2-Clause-Patent

package/edk2-platforms/edk2-platforms.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  41ce6307a1477e2c9a8f81f3b8f876a48df8d4fa5a13f59eedb4767323475a07  edk2-platforms-92f7d69e8aa31e0ae06d4dabbcee12f4ebdb78ed.tar.gz
+sha256  4417db79bfb8a9bf601e94e295fec270f99eac3447a6d418ff28ea7dd374d8d6  edk2-platforms-d1b297b2aa693fc723ac883866c925e9d04260c9.tar.gz
 sha256  50ce20c9cfdb0e19ee34fe0a51fc0afe961f743697b068359ab2f862b494df80  License.txt

package/edk2-platforms/edk2-platforms.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 # Keep in sync with latest commit as of the release date for boot/edk2
-EDK2_PLATFORMS_VERSION = 92f7d69e8aa31e0ae06d4dabbcee12f4ebdb78ed
+EDK2_PLATFORMS_VERSION = d1b297b2aa693fc723ac883866c925e9d04260c9
 EDK2_PLATFORMS_SITE = $(call github,tianocore,edk2-platforms,$(EDK2_PLATFORMS_VERSION))
 EDK2_PLATFORMS_LICENSE = BSD-2-Clause-Patent
 EDK2_PLATFORMS_LICENSE_FILES = License.txt