copybit: Minor fix in opening copybit device

Proper handing of opening copybit device.

Change-Id: Id54ca463fe34764a1a3ffe90a71d8eec7cfefeb3
diff --git a/libcopybit/copybit.cpp b/libcopybit/copybit.cpp
index 645cd81..84d7620 100644
--- a/libcopybit/copybit.cpp
+++ b/libcopybit/copybit.cpp
@@ -705,7 +705,7 @@
 {
     int status = -EINVAL;
 
-    if (!strcmp(name, COPYBIT_HARDWARE_COPYBIT0)) {
+    if (strcmp(name, COPYBIT_HARDWARE_COPYBIT0)) {
         return COPYBIT_FAILURE;
     }
     copybit_context_t *ctx;