sparc: turn CONFIG_OF into a select

so that we can make CONFIG_OF global and remove it from
the architecture Kconfig files later.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 6f1470b..d02e8ac 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -18,6 +18,7 @@
 config SPARC
 	bool
 	default y
+	select OF
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select HAVE_ARCH_KGDB if !SMP || SPARC64
@@ -149,7 +150,7 @@
 	def_bool y
 
 config OF
-	def_bool y
+	bool
 
 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 	def_bool y if SPARC64