Revert "env: only build env_embedded and envcrc when needed"

Breaks building on many boards, and no really clean fix available yet.

This reverts commit 6dab6add2d.

common/env_embedded.c

@@ -40,6 +40,11 @@
 #  define SYM_CHAR
 #endif
 
+/*
+ * Generate embedded environment table
+ * inside U-Boot image, if needed.
+ */
+#if defined(ENV_IS_EMBEDDED)
 /*
  * Only put the environment in it's own section when we are building
  * U-Boot proper.  The host based program "tools/envcrc" does not need
@@ -205,3 +210,5 @@ unsigned long env_size __PPCTEXT__ = sizeof(env_t);
  * Add in absolutes.
  */
 GEN_ABS(env_offset, CONFIG_ENV_OFFSET);
+
+#endif /* ENV_IS_EMBEDDED */