util-linux: select ncurses when "pg" is selected

Fixes:
http://autobuild.buildroot.net/results/63374203f32d2e9407531b53cd5d8f2665944fbe
http://autobuild.buildroot.net/results/6279cd6f45f54ed5857a2fc08a21d9e257b6bc4b
http://autobuild.buildroot.net/results/5604c56c0c92483d28e51eb4e70a9741c3c4effe

Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/util-linux/Config.in

@@ -252,6 +252,7 @@ comment "nsenter needs a toolchain w/ headers >= 3.0"
 config BR2_PACKAGE_UTIL_LINUX_PG
 	bool "pg"
 	depends on BR2_USE_MMU # fork()
+	select BR2_PACKAGE_NCURSES
 	help
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