microblaze: Add ID for Microblaze v11

List Microblaze v11 from PVR.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/kernel/cpu/cpuinfo.c

@@ -51,6 +51,7 @@ const struct cpu_ver_key cpu_ver_lookup[] = {
 	{"9.5", 0x22},
 	{"9.6", 0x23},
 	{"10.0", 0x24},
+	{"11.0", 0x25},
 	{NULL, 0},
 };