Harmonize coding style.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

src/hsm/cmd_session_pin.c

@@ -19,7 +19,8 @@
 #include "random.h"
 #include "eac.h"
 
-int cmd_session_pin() {
+int cmd_session_pin()
+{
     if (P1(apdu) == 0x01 && P2(apdu) == 0x81) {
         memcpy(sm_session_pin, random_bytes_get(8), 8);
         sm_session_pin_len = 8;
@@ -27,8 +28,8 @@ int cmd_session_pin() {
         memcpy(res_APDU, sm_session_pin, sm_session_pin_len);
         res_APDU_size = sm_session_pin_len;
         apdu.ne = sm_session_pin_len;
-    }
-    else
+    } else {
         return SW_INCORRECT_P1P2();
+    }
     return SW_OK();
 }