ARM: 9226/1: disable FDPIC ABI

When building with an arm-*-uclinuxfdpiceabi toolchain, the FDPIC ABI is
enabled by default but should not be used to build the kernel.
Therefore, pass -mno-fdpic if supported by the compiler.
Signed-off-by: Ben Wolsieffer <ben.wolsieffer@hefring.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

arch/arm/Makefile

@@ -22,6 +22,9 @@ GZFLAGS		:=-9
 # Never generate .eh_frame
 KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)
 
+# Disable FDPIC ABI
+KBUILD_CFLAGS	+= $(call cc-option,-mno-fdpic)
+
 # This should work on most of the modern platforms
 KBUILD_DEFCONFIG := multi_v7_defconfig