package/davinci-bootcount: add BR2_arm dependency

Like the other packages for AM335x platform.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/davinci-bootcount/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_DAVINCI_BOOTCOUNT
 	bool "davinci-bootcount"
+	depends on BR2_arm # only relevant for TI am335x
 	help
 	  U-Boot implements a boot count scheme that can be used to
 	  detect multiple failed attempts to boot Linux. On Davinci