ima: Fix undefined arch_ima_get_secureboot() and co

Currently arch_ima_get_secureboot() and arch_get_ima_policy() are
defined only when CONFIG_IMA is set, and this makes any code calling
those functions without CONFIG_IMA fail.

Move the declaration and the dummy definition of those functions
outside ifdef-CONFIG_IMA block for fixing the undefined symbols.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
[zohar@linux.ibm.com: removed in-tree/out-of-tree comment in patch description]
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

include/linux/ima.h

@@ -50,21 +50,6 @@ static inline void ima_appraise_parse_cmdline(void) {}
 extern void ima_add_kexec_buffer(struct kimage *image);
 #endif
 
-#ifdef CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT
-extern bool arch_ima_get_secureboot(void);
-extern const char * const *arch_get_ima_policy(void);
-#else
-static inline bool arch_ima_get_secureboot(void)
-{
-	return false;
-}
-
-static inline const char * const *arch_get_ima_policy(void)
-{
-	return NULL;
-}
-#endif
-
 #else
 static inline enum hash_algo ima_get_current_hash_algo(void)
 {
@@ -155,6 +140,21 @@ static inline int ima_measure_critical_data(const char *event_label,
 
 #endif /* CONFIG_IMA */
 
+#ifdef CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT
+extern bool arch_ima_get_secureboot(void);
+extern const char * const *arch_get_ima_policy(void);
+#else
+static inline bool arch_ima_get_secureboot(void)
+{
+	return false;
+}
+
+static inline const char * const *arch_get_ima_policy(void)
+{
+	return NULL;
+}
+#endif
+
 #ifndef CONFIG_IMA_KEXEC
 struct kimage;