[PATCH] boot: Use correct PHASE_ variable for expo

[Quentin Schulz]

Hi Simon,

On 12/7/24 3:52 PM, Simon Glass wrote:
> This patch was written before the XPL change-over. Update the Makefile
> condition to the new way.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>
> Fixes: ae3b5928d61 ("x86: coreboot: Allow building an expo for...")
> 

Reviewed-by: Quentin Schulz <quentin.schulz at cherry.de>

Thanks!
Quentin