[PATCH] powerpc/Kconfig: Make FSL_85XX_CACHE_SRAM configurable

[Scott Wood]

On Mon, 2020-01-20 at 06:43 -0800, wangwenhu wrote:
> From: wangwenhu <wenhu.wang at vivo.com>
> 
> When generating .config file with menuconfig on Freescale BOOKE
> SOC, FSL_85XX_CACHE_SRAM is not configurable for the lack of
> description in the Kconfig field, which makes it impossible
> to support L2Cache-Sram driver. Add a description to make it
> configurable.
> 
> Signed-off-by: wangwenhu <wenhu.wang at vivo.com>

The intent was that drivers using the SRAM API would select the symbol.  What
is the use case for selecting it manually?

Since this code was added almost ten years ago and there are still no (in-
tree?) users of the API, we should just remove the sram code (unless this
prods someone to submit such a user very soon).

-Scott