package/rtl8723ds: fix typo CLAGS renaming with CFLAGS

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 7c30ba90ce581b3cb8ac9b0ba304fddab20d4ba6)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/rtl8723ds/rtl8723ds.mk

@@ -9,7 +9,7 @@ RTL8723DS_SITE = $(call github,lwfinger,rtl8723ds,$(RTL8723DS_VERSION))
 RTL8723DS_LICENSE = GPL-2.0
 RTL8723DS_LICENSE_FILES = COPYING
 
-RTL8723DS_USER_EXTRA_CLAGS = \
+RTL8723DS_USER_EXTRA_CFLAGS = \
 	-DCONFIG_$(call qstrip,$(BR2_ENDIAN))_ENDIAN \
 	-DCONFIG_IOCTL_CFG80211 \
 	-DRTW_USE_CFG80211_STA_EVENT \
@@ -20,7 +20,7 @@ RTL8723DS_MODULE_MAKE_OPTS = \
 	CONFIG_RTL8723DS=m \
 	KVER=$(LINUX_VERSION_PROBED) \
 	KSRC=$(LINUX_DIR) \
-	USER_EXTRA_CFLAGS="$(RTL8723DS_USER_EXTRA_CLAGS)"
+	USER_EXTRA_CFLAGS="$(RTL8723DS_USER_EXTRA_CFLAGS)"
 
 define RTL8723DS_LINUX_CONFIG_FIXUPS
 	$(call KCONFIG_ENABLE_OPT,CONFIG_NET)