ARM: fix build error when BPF_SYSCALL is disabled

It was missing a semicolon.

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Fixes: 25875aa71d ("ARM: include unprivileged BPF status in Spectre V2 reporting").
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/arm/kernel/spectre.c

@@ -10,7 +10,7 @@ static bool _unprivileged_ebpf_enabled(void)
 #ifdef CONFIG_BPF_SYSCALL
 	return !sysctl_unprivileged_bpf_disabled;
 #else
-	return false
+	return false;
 #endif
 }