powerpc/configs/64s: Add secure boot options to defconfig

Add the numerous options required to get secure boot enabled.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230414132415.821564-6-mpe@ellerman.id.au

arch/powerpc/configs/ppc64_defconfig

@@ -54,6 +54,7 @@ CONFIG_CRASH_DUMP=y
 CONFIG_FA_DUMP=y
 CONFIG_IRQ_ALL_CPUS=y
 CONFIG_SCHED_SMT=y
+CONFIG_PPC_SECURE_BOOT=y
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM_BOOK3S_64=m
 CONFIG_KVM_BOOK3S_64_HV=m
@@ -335,13 +336,25 @@ CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ASCII=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_NLS_UTF8=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_LOCKDOWN_LSM=y
+CONFIG_SECURITY_LOCKDOWN_LSM_EARLY=y
+CONFIG_INTEGRITY_SIGNATURE=y
+CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
+CONFIG_INTEGRITY_PLATFORM_KEYRING=y
+CONFIG_IMA=y
+CONFIG_IMA_KEXEC=y
+CONFIG_IMA_DEFAULT_HASH_SHA256=y
+CONFIG_IMA_WRITE_POLICY=y
+CONFIG_IMA_APPRAISE=y
+CONFIG_IMA_ARCH_POLICY=y
+CONFIG_IMA_APPRAISE_MODSIG=y
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_CAST6=m
 CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_MICHAEL_MIC=m
 CONFIG_CRYPTO_SHA256=y
 CONFIG_CRYPTO_WP512=m
@@ -352,6 +365,8 @@ CONFIG_CRYPTO_SHA1_PPC=m
 CONFIG_CRYPTO_DEV_NX=y
 CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
 CONFIG_CRYPTO_DEV_VMX=y
+CONFIG_SYSTEM_TRUSTED_KEYRING=y
+CONFIG_SYSTEM_BLACKLIST_KEYRING=y
 CONFIG_PRINTK_TIME=y
 CONFIG_PRINTK_CALLER=y
 CONFIG_DEBUG_KERNEL=y