arm: deprecate OABI

The BR2_ARM_EABI config symbol is still kept in order to minimize
the impact.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

arch/Config.in.arm

@@ -68,6 +68,7 @@ config BR2_arm1136jf_s
 choice
 	prompt "Target ABI"
 	depends on BR2_arm || BR2_armeb
+	depends on BR2_DEPRECATED
 	default BR2_ARM_EABI
 	help
 	  Application Binary Interface to use
@@ -82,6 +83,10 @@ config BR2_ARM_OABI
 	depends on !BR2_GCC_VERSION_4_7_X
 endchoice
 
+config BR2_ARM_EABI
+	default y
+	depends on !BR2_DEPRECATED
+
 config BR2_ARM_ENABLE_NEON
 	bool "Enable NEON SIMD extension support"
 	depends on BR2_ARM_CPU_MAYBE_HAS_NEON