image: remove redundant hash includes

Remove the redundant includes of u-boot/md5.h, u-boot/sha1.h,
u-boot/sha256.h and u-boot/sha512.h

Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@gmail.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2 files changed