getevent: Fix a couple of bugs.

Fixed a bug printing the event value when using labels.

Stop trying to print the available codes for EV_SYN because
we cannot actually query them.  EVIOCGBIT(0, size) is a special
case that returns the set of events that are supported, and
EV_SYN == 0.

Change-Id: Iea086ba24300ca0815e4814a3bc5ff60756612c2
diff --git a/toolbox/getevent.c b/toolbox/getevent.c
index f0a6c24..c0ac94a 100644
--- a/toolbox/getevent.c
+++ b/toolbox/getevent.c
@@ -82,7 +82,7 @@
     const char *bit_label;
 
     printf("  events:\n");
-    for(i = 0; i <= EV_MAX; i++) {
+    for(i = EV_KEY; i <= EV_MAX; i++) { // skip EV_SYN since we cannot query its available codes
         int count = 0;
         while(1) {
             res = ioctl(fd, EVIOCGBIT(i, bits_size), bits);
@@ -97,10 +97,6 @@
         }
         res2 = 0;
         switch(i) {
-            case EV_SYN:
-                label = "SYN";
-                bit_labels = syn_labels;
-                break;
             case EV_KEY:
                 res2 = ioctl(fd, EVIOCGKEY(res), bits + bits_size);
                 label = "KEY";
@@ -252,7 +248,7 @@
         if (value_label)
             printf(" %-20.20s", value_label);
         else
-            printf(" %08x            ", code);
+            printf(" %08x            ", value);
     } else {
         printf("%04x %04x %08x", type, code, value);
     }