drivers/mtd/nvmxip: nvmxip.h is a global include

include/nvmxip.h is a global and not a local include.
So we should use angle brackets.

Fixes: dc3abd8006c5 ("nvmxip: move header to include")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/drivers/mtd/nvmxip/nvmxip.c b/drivers/mtd/nvmxip/nvmxip.c
index 229938d..594500f 100644
--- a/drivers/mtd/nvmxip/nvmxip.c
+++ b/drivers/mtd/nvmxip/nvmxip.c
@@ -9,10 +9,10 @@
 #include <dm.h>
 #include <log.h>
 #include <mapmem.h>
+#include <nvmxip.h>
 #include <asm/io.h>
 #include <linux/bitops.h>
 #include <linux/errno.h>
-#include "nvmxip.h"
 
 /**
  * nvmxip_blk_read() - block device read operation