x86/microcode: Announce reload operation's completion

By popular demand, issue a single line to dmesg after the reload
operation completes to let the user know that a reload has at least been
attempted.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190313110022.8229-1-bp@alien8.de

arch/x86/kernel/cpu/microcode/core.c

@@ -608,6 +608,8 @@ static int microcode_reload_late(void)
 	if (ret > 0)
 		microcode_check();
 
+	pr_info("Reload completed, microcode revision: 0x%x\n", boot_cpu_data.microcode);
+
 	return ret;
 }