ARM: 9470/1: Handle BE8 vs BE32 in ARCH_CC_CAN_LINK

ARM big-endian has two different binary formats. BE8 and the older BE32.
They are incompatible with each other.

Handle those when evaluating ARCH_CC_CAN_LINK by using the respective
configuration of the kernel itself.

Fixes: 3df8585 ("ARM: 9469/1: Implement ARCH_HAS_CC_CAN_LINK")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

Author: t-8ch

arch/arm/Kconfig

@@ -1719,12 +1719,14 @@ endmenu
 config ARCH_CC_CAN_LINK
 	bool
 	default $(cc_can_link_user,-mlittle-endian) if CPU_LITTLE_ENDIAN
-	default $(cc_can_link_user,-mbig-endian) if CPU_BIG_ENDIAN
+	default $(cc_can_link_user,-mbig-endian -mbe8) if CPU_ENDIAN_BE8
+	default $(cc_can_link_user,-mbig-endian -mbe32) if CPU_ENDIAN_BE32
 
 config ARCH_USERFLAGS
 	string
 	default "-mlittle-endian" if CPU_LITTLE_ENDIAN
-	default "-mbig-endian" if CPU_BIG_ENDIAN
+	default "-mbig-endian -mbe8" if CPU_ENDIAN_BE8
+	default "-mbig-endian -mbe32" if CPU_ENDIAN_BE32
 
 menu "Power management options"