arm64: Fix CONFIG_ARCH_RANDOM=n build

The entire asm/archrandom.h header is generically included via
linux/archrandom.h only when CONFIG_ARCH_RANDOM is already set, so the
stub definitions of __arm64_rndr() and __early_cpu_has_rndr() are only
visible to KASLR if it explicitly includes the arch-internal header.

Acked-by: Mark Brown <[email protected]>
Signed-off-by: Robin Murphy <[email protected]>
Signed-off-by: Will Deacon <[email protected]>

Author: rmurphy-arm

arch/arm64/kernel/kaslr.c

@@ -11,6 +11,7 @@
 #include <linux/sched.h>
 #include <linux/types.h>
 
+#include <asm/archrandom.h>
 #include <asm/cacheflush.h>
 #include <asm/fixmap.h>
 #include <asm/kernel-pgtable.h>