[U-Boot] [PATCH] Makefile: remove generated font files

[Heinrich Schuchardt]

If `make mrproper` does not delete the generated drivers/video/fonts/*.S
files a following `make tests` fails.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 06c58408fd..bd9a15ef24 100644
--- a/Makefile
+++ b/Makefile
@@ -1740,7 +1740,8 @@ CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
 MRPROPER_DIRS  += include/config include/generated spl tpl \
 		  .tmp_objdiff
 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
-		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
+		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
+		  drivers/video/fonts/*.S
 
 # clean - Delete most, but leave enough to build external modules
 #
-- 
2.20.1