ARM: define MON_MODE

Add a MON_MODE define for ARM's monitor mode. This can be used later by
a secure monitor to avoid hard-coding mode IDs.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/include/asm/proc-armv/ptrace.h b/arch/arm/include/asm/proc-armv/ptrace.h
index 71df5a9..183b00a 100644
--- a/arch/arm/include/asm/proc-armv/ptrace.h
+++ b/arch/arm/include/asm/proc-armv/ptrace.h
@@ -37,6 +37,7 @@
 #define FIQ_MODE	0x11
 #define IRQ_MODE	0x12
 #define SVC_MODE	0x13
+#define MON_MODE	0x16
 #define ABT_MODE	0x17
 #define HYP_MODE	0x1a
 #define UND_MODE	0x1b