[PATCH] kbuild: fix a typo dt_binding_schema -> dt_binding_schemas

[Xu Yang]

If we follow "make help" to "make dt_binding_schema", we will see
below error:

$ make dt_binding_schema
make[1]: *** No rule to make target 'dt_binding_schema'.  Stop.
make: *** [Makefile:224: __sub-make] Error 2

It should be a typo. So this will fix it.

Fixes: 604a57ba9781 ("dt-bindings: kbuild: Add separate target/dependency for processed-schema.json")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Xu Yang <xu.yang_2@xxxxxxx>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 265dd990a9b6..7aa71c70305e 100644
--- a/Makefile
+++ b/Makefile
@@ -1645,7 +1645,7 @@ help:
 		echo '* dtbs               - Build device tree blobs for enabled boards'; \
 		echo '  dtbs_install       - Install dtbs to $(INSTALL_DTBS_PATH)'; \
 		echo '  dt_binding_check   - Validate device tree binding documents and examples'; \
-		echo '  dt_binding_schema  - Build processed device tree binding schemas'; \
+		echo '  dt_binding_schemas - Build processed device tree binding schemas'; \
 		echo '  dtbs_check         - Validate device tree source files';\
 		echo '')
 
-- 
2.34.1