Revert "O is API 26"

This reverts commit 9bcef8e2da.

Reason for revert:  b/37355569

Bug: 37480230
Bug: 37355569
Change-Id: I39b4a7fd9bda77df0746c7bc32b87f0c2b722f2b

api/current.txt

@@ -30508,7 +30508,7 @@ package android.os {
     field public static final int M = 23; // 0x17
     field public static final int N = 24; // 0x18
     field public static final int N_MR1 = 25; // 0x19
-    field public static final int O = 26; // 0x1a
+    field public static final int O = 10000; // 0x2710
   }
 
   public final class Bundle extends android.os.BaseBundle implements java.lang.Cloneable android.os.Parcelable {

api/system-current.txt

@@ -33218,7 +33218,7 @@ package android.os {
     field public static final int M = 23; // 0x17
     field public static final int N = 24; // 0x18
     field public static final int N_MR1 = 25; // 0x19
-    field public static final int O = 26; // 0x1a
+    field public static final int O = 10000; // 0x2710
   }
 
   public final class Bundle extends android.os.BaseBundle implements java.lang.Cloneable android.os.Parcelable {

api/test-current.txt

@@ -30617,7 +30617,7 @@ package android.os {
     field public static final int M = 23; // 0x17
     field public static final int N = 24; // 0x18
     field public static final int N_MR1 = 25; // 0x19
-    field public static final int O = 26; // 0x1a
+    field public static final int O = 10000; // 0x2710
   }
 
   public final class Bundle extends android.os.BaseBundle implements java.lang.Cloneable android.os.Parcelable {

core/java/android/os/Build.java

@@ -758,7 +758,7 @@ public class Build {
         /**
          * O.
          */
-        public static final int O = 26;
+        public static final int O = CUR_DEVELOPMENT; // STOPSHIP Replace with the real version.
     }
 
     /** The type of build, like "user" or "eng". */