[U-Boot] [PATCH] lib: time: update module enable MACRO

[Philipp Tomsich]

> On 29.03.2019, at 15:17, Kever Yang <kever.yang at rock-chips.com> wrote:
> 
> We'd better use correct way to check if module has enabled.
> for we have 3 timer MACRO:
> - CONFIG_TIMER
> - CONFIG_SPL_TIMER
> - CONFIG_TPL_TIMER
> 
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>

Reviewed-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>