[Buildroot] [PATCH] package/rpi-firmware: Fix config.txt installation

[Grzegorz Blach]

Variable PACKAGE_RPI_FIRMWARE_CONFIG_FILE is always undefined,
so RPI_FIRMWARE_CONFIG_FILE should be used instead.

Signed-off-by: Grzegorz Blach <grzegorz at blach.pl>
---
 package/rpi-firmware/rpi-firmware.mk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/rpi-firmware/rpi-firmware.mk b/package/rpi-firmware/rpi-firmware.mk
index 8a6a435f63..0929d6af1e 100644
--- a/package/rpi-firmware/rpi-firmware.mk
+++ b/package/rpi-firmware/rpi-firmware.mk
@@ -28,9 +28,9 @@ define RPI_FIRMWARE_INSTALL_BIN
 endef
 
 RPI_FIRMWARE_CONFIG_FILE = $(call qstrip,$(BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE))
-ifneq ($(PACKAGE_RPI_FIRMWARE_CONFIG_FILE),)
+ifneq ($(RPI_FIRMWARE_CONFIG_FILE),)
 define RPI_FIRMWARE_INSTALL_CONFIG
-	$(INSTALL) -D -m 0644 $(PACKAGE_RPI_FIRMWARE_CONFIG_FILE) \
+	$(INSTALL) -D -m 0644 $(RPI_FIRMWARE_CONFIG_FILE) \
 		$(BINARIES_DIR)/rpi-firmware/config.txt
 endef
 endif
-- 
2.27.0