Update defs.h

verilog/dv/caravel/defs.h

diff --git a/verilog/dv/caravel/defs.h b/verilog/dv/caravel/defs.h
index 6e42c7a..b473091 100644
--- a/verilog/dv/caravel/defs.h
+++ b/verilog/dv/caravel/defs.h
@@ -193,11 +193,15 @@
 #define GPIO_MODE_MGMT_STD_INPUT_PULLDOWN  0x0803
 #define GPIO_MODE_MGMT_STD_INPUT_PULLUP	   0x0c03
 #define GPIO_MODE_MGMT_STD_OUTPUT	   0x1809
+#define GPIO_MODE_MGMT_STD_BIDIRECTIONAL   0x1801
+#define GPIO_MODE_MGMT_STD_ANALOG   	   0x000b
 
 #define GPIO_MODE_USER_STD_INPUT_NOPULL	   0x0402
 #define GPIO_MODE_USER_STD_INPUT_PULLDOWN  0x0802
 #define GPIO_MODE_USER_STD_INPUT_PULLUP	   0x0c02
 #define GPIO_MODE_USER_STD_OUTPUT	   0x1808
+#define GPIO_MODE_USER_STD_BIDIRECTIONAL   0x1800
+#define GPIO_MODE_USER_STD_ANALOG   	   0x000a
 
 // --------------------------------------------------------
 #endif