package/fwts: bump to version 26.03.00

See release announces:
26.01.00: https://lists.ubuntu.com/archives/fwts-devel/2026-January/014129.html
26.03.00: https://lists.ubuntu.com/archives/fwts-devel/2026-March/014171.html

The website [1] is no longer working. This commit updates FWTS_SITE
to use Github [2], which is now the primary download site in the
release announce.

This commit also rewrote the package patch (to add a new
--disable-werror configure option), which was proposed upstream.
This new option is added in FWTS_CONF_OPTS. With this patch now
proposed upstream, the corresponding .checkpackageignore entry
is also removed.

The license hash is also updated, after a year update in [3].

The fwts efi_runtime kernel module has been removed upstream,
in commit [4]. It is replaced by the Kernel driver efi_test, present
since Kernel v4.9, introduced in commit [5]. This commit removes the
option and updates the runtime test accordingly. A note is added in the
Config.in package help.

Fixes:
https://autobuild.buildroot.org/results/859390dbd2a1d7b3bf43588a461a2ff7dc66f92b/

[1] https://fwts.ubuntu.com/
[2] https://github.com/fwts/fwts
[3] b3cd64e61d
[4] 6d52a62169
[5] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ff6301dabc3ca20ab8f50f8d0252ac05da610d89

Signed-off-by: Julien Olivain <ju.o@free.fr>
[Romain: add a comment for FWTS_AUTORECONF = YES]
Signed-off-by: Romain Naour <romain.naour@smile.fr>

support/testing/tests/package/test_fwts.py

@@ -4,8 +4,10 @@ import infra.basetest
 
 
 class TestFwts(infra.basetest.BRTest):
+    kernel_fragment = \
+        infra.filepath("tests/package/test_fwts/linux-efi-test.fragment")
     config = \
-        """
+        f"""
         BR2_aarch64=y
         BR2_neoverse_n2=y
         BR2_TOOLCHAIN_EXTERNAL=y
@@ -21,6 +23,7 @@ class TestFwts(infra.basetest.BRTest):
         BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.6.28"
         BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
         BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y
+        BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{kernel_fragment}"
         BR2_TARGET_EDK2=y
         BR2_TARGET_EDK2_PLATFORM_QEMU_SBSA=y
         BR2_TARGET_GRUB2=y
@@ -31,7 +34,6 @@ class TestFwts(infra.basetest.BRTest):
         BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="qemu_sbsa"
         BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP=y
         BR2_PACKAGE_FWTS=y
-        BR2_PACKAGE_FWTS_EFI_RUNTIME_MODULE=y
         BR2_PACKAGE_HOST_GENIMAGE=y
         BR2_PACKAGE_HOST_DOSFSTOOLS=y
         BR2_PACKAGE_HOST_MTOOLS=y

support/testing/tests/package/test_fwts/linux-efi-test.fragment

@@ -0,0 +1 @@
+CONFIG_EFI_TEST=y