fix build for aarch64 SB signing

tools/kernelmanager/kernel_repack/v1/BUILD

@@ -17,7 +17,8 @@ go_library(
         "data/kvm_stat.logrotate",
         "data/mod-denylist.sh",
         "data/mod-sign.sh",
-        "data/rocky-sigkernel.cer",
+        "data/secureboot-sig-kernel-x86_64.cer",
+        "data/secureboot-sig-kernel-aarch64.cer",
         "data/rockykpatch1.x509",
         "data/x509.genkey",
         "data/rockydup1.x509",

tools/kernelmanager/kernel_repack/v1/data/ml.spec

@@ -240,11 +240,18 @@ Source2000: cpupower.service
 Source2001: cpupower.config
 Source2002: kvm_stat.logrotate
 
-Source3000: rocky-sigkernel.cer
+Source3000: secureboot-sig-kernel-x86_64.cer
+Source3001: secureboot-sig-kernel-aarch64.cer
 
 %if %{signkernel}
 %define secureboot_ca_0 %{_datadir}/pki/sb-certs/secureboot-ca-%{_arch}.cer
+
+%ifarch x86_64
 %define secureboot_key_0 %{SOURCE3000}
+%endif
+%ifarch aarch64
+%define secureboot_key_0 %{SOURCE3001}
+%endif
 
 %define pesign_name_0 rockybootsigningsigkernelcert
 %endif

tools/kernelmanager/kernel_repack/v1/data/secureboot-sig-kernel-aarch64.cer

@@ -0,0 +1,30 @@
+-----BEGIN CERTIFICATE-----
+MIIFNTCCBB2gAwIBAgIBHzANBgkqhkiG9w0BAQsFADCB1DELMAkGA1UEBhMCVVMx
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+/KZUrmLiMCVCT5me1ryZn3hJaNe+4Hz6I4Bs/3CbpjZcl1UCru0PN8Y=
+-----END CERTIFICATE-----