package/libnfc: pn53x_usb driver needs gcc >= 4.9

Commit 8a26801c9fad1c7749200e22e9dfdeaeeb65f76e forgot to propagate
gcc >= 4.9 dependency

Fixes:
 - http://autobuild.buildroot.org/results/6586f4aecf9a47612bfedfc503c9c2948a17e9d6

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libnfc/Config.in

@@ -64,13 +64,15 @@ config BR2_PACKAGE_LIBNFC_PN53X_USB
 	bool "pn53x_usb driver"
 	default y
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libusb
 	select BR2_PACKAGE_LIBUSB
 	select BR2_PACKAGE_LIBUSB_COMPAT
 	help
 	  support for pn53x_usb driver
 
-comment "pn53x_usb driver needs a toolchain w/ threads"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS
+comment "pn53x_usb driver needs a toolchain w/ threads, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 
 config BR2_PACKAGE_LIBNFC_EXAMPLES
 	bool "build libnfc examples"