mx5: Remove unnecessary CONFIG_SYS_BOOTMAPSZ definition

Since the following commit, definition CONFIG_SYS_BOOTMAPSZ is not
needed any more.

  ed59e58786cae9f8afcb575649afc65985beed4d
  Remove device tree booting dependency on CONFIG_SYS_BOOTMAPSZ

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2 files changed