Revert "Merge latest oemcrypto-v17 change"

This reverts commit 642965c678.

Reason for revert: Droidfood Blocking Bug: 217145027

Change-Id: I669b72fcd91c62e28883b5f55eb36af274d85806
(cherry picked from commit 8dbea15e5da05b371572297041454569dc166c90)
Merged-In:I669b72fcd91c62e28883b5f55eb36af274d85806

libwvdrmengine/cdm/util/include/advance_iv_ctr.h

@@ -10,7 +10,7 @@
 
 #include "string_conversions.h"
 
-namespace wvutil {
+namespace wvcdm {
 
 // Advance an IV according to ISO-CENC's CTR modes. The lower half of the IV is
 // split off and treated as an unsigned 64-bit integer, then incremented by the
@@ -41,6 +41,6 @@ inline void AdvanceIvCtr(uint8_t (*subsample_iv)[16], size_t bytes) {
   memcpy(&(*subsample_iv)[kCounterIndex], &counter, kCounterSize);
 }
 
-}  // namespace wvutil
+}  // namespace wvcdm
 
 #endif  // WVCDM_UTIL_ADVANCE_IV_CTR_H_