xilinx: Fix logic when dfu_alt_info is generated

Generate dfu_alt_info only when it is not defined.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/464e4b325c644e52a660df9cf44eeb4d80427f6a.1660055571.git.michal.simek@amd.com

board/xilinx/zynq/board.c

@@ -168,8 +168,7 @@ void set_dfu_alt_info(char *interface, char *devstr)
 {
 	ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
 
-	if (!CONFIG_IS_ENABLED(EFI_HAVE_CAPSULE_SUPPORT) &&
-	    env_get("dfu_alt_info"))
+	if (env_get("dfu_alt_info"))
 		return;
 
 	memset(buf, 0, sizeof(buf));

board/xilinx/zynqmp/zynqmp.c

@@ -641,8 +641,7 @@ void set_dfu_alt_info(char *interface, char *devstr)
 
 	ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
 
-	if (!CONFIG_IS_ENABLED(EFI_HAVE_CAPSULE_SUPPORT) &&
-	    env_get("dfu_alt_info"))
+	if (env_get("dfu_alt_info"))
 		return;
 
 	memset(buf, 0, sizeof(buf));