[U-Boot] [PATCH v2 26/37] binman: Correct comment in u_boot_spl_elf

[sjg at google.com]

This comment mentions the wrong default filename. Fix it.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v2: None

 tools/binman/README.entries          | 2 +-
 tools/binman/etype/u_boot_spl_elf.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Applied to u-boot-dm, thanks!