bi-endian toolchain switches

[Jim Freeman <jfree@sovereign.org>]

For bi-endian cross-compiler toolchains, something akin to the following
patch can be helpful for setting endianness switches according to
CONFIG_CPU_LITTLE_ENDIAN :

        --- linux/arch/mips/Makefile    2001/02/14 21:04:31     1.1
        +++ linux/arch/mips/Makefile    2001/02/14 21:07:00
        @@ -18,9 +18,13 @@
         ifdef CONFIG_CPU_LITTLE_ENDIAN
         tool-prefix    = mipsel-linux-
         output-format  = elf32-littlemips
        +export LD              = $(CROSS_COMPILE)ld -EL
        +export CC              = $(CROSS_COMPILE)cc -EL
         else
         tool-prefix    = mips-linux-
         output-format  = elf32-bigmips
        +export LD              = $(CROSS_COMPILE)ld -EB
        +export CC              = $(CROSS_COMPILE)cc -EB
         endif
         
         ifdef CONFIG_CROSSCOMPILE