sh: add probe support for new sh7722 cut

This patch adds support for sh7722 devices with prr value 0xa1.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/kernel/cpu/sh4/probe.c

@@ -126,7 +126,7 @@ int __init detect_cpu_and_cache_system(void)
 					  CPU_HAS_LLSC;
 		break;
 	case 0x3008:
-		if (prr == 0xa0) {
+		if (prr == 0xa0 || prr == 0xa1) {
 			boot_cpu_data.type = CPU_SH7722;
 			boot_cpu_data.icache.ways = 4;
 			boot_cpu_data.dcache.ways = 4;