applypatch: Refactor strtok().

We have android::base::Split() for the work.

Change-Id: I0fb562feb203c9b15e2f431d8e84355fd682376a
(cherry picked from commit 0a47ce27de454e272a883a0c452fad627fd7f419)
diff --git a/applypatch/Android.mk b/applypatch/Android.mk
index 1f73fd8..cc17a13 100644
--- a/applypatch/Android.mk
+++ b/applypatch/Android.mk
@@ -21,7 +21,7 @@
 LOCAL_MODULE := libapplypatch
 LOCAL_MODULE_TAGS := eng
 LOCAL_C_INCLUDES += external/bzip2 external/zlib bootable/recovery
-LOCAL_STATIC_LIBRARIES += libmtdutils libmincrypt libbz libz
+LOCAL_STATIC_LIBRARIES += libbase libmtdutils libmincrypt libbz libz
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -31,7 +31,7 @@
 LOCAL_SRC_FILES := main.cpp
 LOCAL_MODULE := applypatch
 LOCAL_C_INCLUDES += bootable/recovery
-LOCAL_STATIC_LIBRARIES += libapplypatch libmtdutils libmincrypt libbz
+LOCAL_STATIC_LIBRARIES += libapplypatch libbase libmtdutils libmincrypt libbz
 LOCAL_SHARED_LIBRARIES += libz libcutils libc
 
 include $(BUILD_EXECUTABLE)
@@ -44,7 +44,7 @@
 LOCAL_FORCE_STATIC_EXECUTABLE := true
 LOCAL_MODULE_TAGS := eng
 LOCAL_C_INCLUDES += bootable/recovery
-LOCAL_STATIC_LIBRARIES += libapplypatch libmtdutils libmincrypt libbz
+LOCAL_STATIC_LIBRARIES += libapplypatch libbase libmtdutils libmincrypt libbz
 LOCAL_STATIC_LIBRARIES += libz libcutils libc
 
 include $(BUILD_EXECUTABLE)