qt5base: unconditionally install Qt5printSupport if widgets are enabled

The qt5 build system currently unconditionally builds and installs into
staging Qt5PrintSupport if widgets are enabled, so ensure it also gets
installed into target to make sure we don't end up with dynamic linker
errors at runtime:

test: error while loading shared libraries: libQt5PrintSupport.so.5: cannot
open shared object file: No such file or directory

From src.pro:

!contains(QT_CONFIG, no-gui) {
        ..
        !wince*:!winrt {
            SUBDIRS += src_printsupport
            src_plugins.depends += src_printsupport
        }

}

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/qt5/qt5base/Config.in

@@ -209,10 +209,8 @@ config BR2_PACKAGE_QT5BASE_DEFAULT_QPA
 	  different platform at runtime with the -platform option.
 
 config BR2_PACKAGE_QT5BASE_PRINTSUPPORT
-	bool "print support module"
-	select BR2_PACKAGE_QT5BASE_WIDGETS
-	help
-	  This option enables the Qt5PrintSupport
+	depends on BR2_PACKAGE_QT5BASE_WIDGETS
+	def_bool y
 
 config BR2_PACKAGE_QT5BASE_FONTCONFIG
 	bool "fontconfig support"