cifs-utils: fix compilation

Now that libcap-ng is in the tree, cifs-utils is picking it up.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

net/cifs-utils/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=cifs-utils
 PKG_VERSION:=6.10
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://download.samba.org/pub/linux-cifs/cifs-utils/
@@ -54,6 +54,9 @@ CONFIGURE_ARGS += \
 	--disable-man \
 	--without-libcap
 
+CONFIGURE_ARGS += \
+	ac_cv_lib_cap_ng_capng_clear=no
+
 TARGET_CFLAGS += $(FPIC) -ffunction-sections -flto
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed