Move zipalign off NO_ERROR.

I really only care about code that's built for Windows, but I may as
well clean up anywhere that's easy to clean up too...

Bug: N/A
Test: builds
Change-Id: I3ef34fb12ac90e9411b6421e9c23dd8524f056ae
diff --git a/tools/zipalign/ZipAlign.cpp b/tools/zipalign/ZipAlign.cpp
index af04a34..eea1749 100644
--- a/tools/zipalign/ZipAlign.cpp
+++ b/tools/zipalign/ZipAlign.cpp
@@ -111,7 +111,7 @@
             status = pZout->add(pZin, pEntry, padding, &pNewEntry);
         }
 
-        if (status != NO_ERROR)
+        if (status != OK)
             return 1;
         bias += padding;
         //printf(" added '%s' at %ld (pad=%d)\n",
@@ -146,13 +146,13 @@
         return 1;
     }
 
-    if (zin.open(inFileName, ZipFile::kOpenReadOnly) != NO_ERROR) {
+    if (zin.open(inFileName, ZipFile::kOpenReadOnly) != OK) {
         fprintf(stderr, "Unable to open '%s' as zip archive\n", inFileName);
         return 1;
     }
     if (zout.open(outFileName,
             ZipFile::kOpenReadWrite|ZipFile::kOpenCreate|ZipFile::kOpenTruncate)
-        != NO_ERROR)
+        != OK)
     {
         fprintf(stderr, "Unable to open '%s' as zip archive\n", outFileName);
         return 1;
@@ -178,7 +178,7 @@
     if (verbose)
         printf("Verifying alignment of %s (%d)...\n", fileName, alignment);
 
-    if (zipFile.open(fileName, ZipFile::kOpenReadOnly) != NO_ERROR) {
+    if (zipFile.open(fileName, ZipFile::kOpenReadOnly) != OK) {
         fprintf(stderr, "Unable to open '%s' for verification\n", fileName);
         return 1;
     }