libdvr: Fix libdvr typos [1/1]

PD#SWPL-90206

Problem:
Need to fix libdvr typos on Android S/T

Solution:
Fixed typos mentioned in SWPL-89633's typo result list

Verify:
Locally tested OK in AH212 RDK environment.

Signed-off-by: Wentao.MA <wentao.ma@amlogic.com>
Change-Id: Idc07cc30cf59c1018f625f02e4d5d7b8b1ddf79f
diff --git a/include/dvb_frontend_wrapper.h b/include/dvb_frontend_wrapper.h
index 4543ecd..336dc38 100644
--- a/include/dvb_frontend_wrapper.h
+++ b/include/dvb_frontend_wrapper.h
@@ -173,7 +173,7 @@
   {
     TUNER_STATE_LOCKED,
     TUNER_STATE_TIMEOUT,
-    TUNER_STATE_UNKNOW
+    TUNER_STATE_UNKNOWN
   } dmd_tuner_event_t;
 
   typedef struct