Hygon: support build OvmfX64 without option -D SECURE_BOOT_ENABLE=TRUE

When building OVMF{_CODE}.fd using OvmfPkgX64.dsc and define
SECURE_BOOT_ENABLE=TRUE, the OVMF{_CODE}.fd will failure to boot the
AMD SEV/SEV-ES/SEV-SNP and Hygon CSV/CSV2/CSV3 VMs. The root cause
is that the upstream commit 4f173db8b45b ("OvmfPkg/PlatformInitLib:
Add functions for EmuVariableNvStore") rename the function from
TdxValidateCfv to PlatformValidateNvVarStore, and place the function
PlatformValidateNvVarStore to the common lib PlatformInitLib.

I have submitted a bugzilla to the community:

    https://bugzilla.tianocore.org/show_bug.cgi?id=4807

and sent partial fix patches to the mailing lists:

    https://edk2.groups.io/g/devel/message/119921?p=%2C%2C%2C20%2C0%2C0%2C0%3A%3Acreated%2C%2COvmfPkg%2FPlatformInitLib%3A+Detect+FlashNvVarStore+before+validate+it%2C20%2C2%2C0%2C107212891

I don't have a machine that supports SEV-SNP, so I ultimately can't
fully fix the issue, and the patches I sent couldn't be accepted.

In order to support boot AMD SEV... and Hygon CSV... VMs using the OVMF
from the RPM package, I modified the edk2.spec to build OVMF.fd,
OVMF_CODE.fd and OVMF_VARS.fd without the build option
' -D SECURE_BOOT_ENABLE=TRUE'.

Signed-off-by: hanliyang <hanliyang@hygon.cn>

edk2.spec

@@ -7,7 +7,7 @@
 
 Name: edk2
 Version: %{stable_date}
-Release: 17
+Release: 18
 Summary: EFI Development Kit II
 License: BSD-2-Clause-Patent and OpenSSL and MIT 
 URL: https://github.com/tianocore/edk2
@@ -244,6 +244,24 @@ BUILD_OPTION="$BUILD_OPTION -D TPM_CONFIG_ENABLE=TRUE"
 
 build $BUILD_OPTION
 
+%ifarch x86_64
+    for ovmf_bin in $(ls Build/OvmfX64/*/FV/OVMF*.fd); do
+        mv ${ovmf_bin} ${ovmf_bin}.secure_boot
+    done
+
+    BUILD_OPTION=$(echo $BUILD_OPTION | sed 's/ -D SECURE_BOOT_ENABLE=TRUE//g')
+
+    build $BUILD_OPTION
+
+    for ovmf_bin in $(ls Build/OvmfX64/*/FV/OVMF*.fd); do
+        mv ${ovmf_bin} $(echo ${ovmf_bin} | sed 's/\.fd/\.nosb\.fd/')
+    done
+
+    for ovmf_bin in $(ls Build/OvmfX64/*/FV/OVMF*.fd.secure_boot); do
+        mv ${ovmf_bin} $(echo ${ovmf_bin} | sed 's/\.secure_boot//')
+    done
+%endif
+
 %install
 cp CryptoPkg/Library/OpensslLib/openssl/LICENSE.txt LICENSE.openssl
 mkdir -p %{buildroot}%{_bindir} \
@@ -290,6 +308,8 @@ chmod +x %{buildroot}%{_bindir}/Rsa2048Sha256GenerateKeys
 %endif
 
 %ifarch x86_64
+    mkdir -p %{buildroot}/usr/share/%{name}/ovmf.nosb
+    mv Build/OvmfX64/*/FV/OVMF*.nosb.fd %{buildroot}/usr/share/%{name}/ovmf.nosb
     mkdir -p %{buildroot}/usr/share/%{name}/ovmf
     cp Build/OvmfX64/*/FV/OVMF*.fd %{buildroot}/usr/share/%{name}/ovmf
     install -m 0644 edk2-ovmf-x64-nosb.json %{buildroot}%{_datadir}/qemu/firmware/10-edk2-ovmf-x64-nosb.json
@@ -373,6 +393,7 @@ chmod +x %{buildroot}%{_bindir}/Rsa2048Sha256GenerateKeys
 %license LICENSE.openssl
 %dir %{_datadir}/%{name}
 %{_datadir}/%{name}/ovmf
+%{_datadir}/%{name}/ovmf.nosb
 %{_datadir}/qemu/firmware/10-edk2-ovmf-x64-nosb.json
 %endif
 
@@ -401,6 +422,9 @@ chmod +x %{buildroot}%{_bindir}/Rsa2048Sha256GenerateKeys
 %endif
 
 %changelog
+* Fri Feb 28 2025 hanliyang<hanliyang@hygon.cn> - 202308-18
+- Build OVMF without '-D SECURE_BOOT_ENABLE=TRUE' for X64
+
 * Sun Feb 23 2025 huyu<huyu70@h-partners.com> - 202308-17
 - fix CVE-2024-13176、CVE-2024-4741、CVE-2023-5363