uniphier: replace DIV_ROUND_UP() with div_round_up() from utils_def.h
uniphier: replace DIV_ROUND_UP() with div_round_up() from utils_def.h

Use the helper in utils_def.h instead of the own macro.

Change-Id: I527f9e75914d60f66354e365006b960ba5e8cbae
Signed-off-by: Masahiro Yamada <378b411a8a63ecc7605ec4272234862d7781c6ae@socionext.com>

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware