util-linux: fix chfn/chsh missing dependencies

chfn/chsh utilities need linux-pam.

Fixes:
  http://autobuild.buildroot.org/results/cfc/cfc5fd00b9db21b60efe8b74e9966b6192b1da17/

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/util-linux/Config.in

@@ -58,9 +58,14 @@ config BR2_PACKAGE_UTIL_LINUX_ARCH
 
 config BR2_PACKAGE_UTIL_LINUX_CHFN_CHSH
 	bool "chfn/chsh"
+	select BR2_PACKAGE_LINUX_PAM
+	depends on (BR2_ENABLE_LOCALE && BR2_USE_WCHAR) # linux-pam
 	help
 	  Change login shell, real user name and information
 
+comment "chfn/chsh needs a toolchain w/ wchar, locale"
+	depends on !(BR2_ENABLE_LOCALE && BR2_USE_WCHAR)
+
 config BR2_PACKAGE_UTIL_LINUX_CRAMFS
 	bool "cramfs utilities"
 	select BR2_PACKAGE_ZLIB