[PATCH] mediatek: fix bashism in gen_banana_pi_img.sh

[David Woodhouse]

There was a bashism in the script. This fixes the script so that it
doesn't actually require bash, and can be run with any POSIX shell as
its shebang suggests.

Signed-off-by: David Woodhouse <dwmw2 at infradead.org>
---
Oops, didn't realise that 'function' was a bashism too.

 target/linux/mediatek/image/gen_banana_pi_img.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/mediatek/image/gen_banana_pi_img.sh b/target/linux/mediatek/image/gen_banana_pi_img.sh
index 26fbca1388..d46e92fa42 100755
--- a/target/linux/mediatek/image/gen_banana_pi_img.sh
+++ b/target/linux/mediatek/image/gen_banana_pi_img.sh
@@ -78,7 +78,7 @@
 # The contents of the main eMMC are identical to the SD card layout,
 # with the preloader loading 512KiB of U-Boot starting at 0x50000.
 
-function usage() {
+usage() {
     echo "SYNTAX: $0 sd <file> <preloader image> <u-boot image> <bootfs image> <rootfs image> <bootfs size> <rootfs size>"
     echo " OR:    $0 emmc <file> <preloader image>"
     exit 1
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