* config/bfin/uclinux.h, config/c6x/uclinux-elf.h,
	* config/lm32/uclinux-elf.h, config/m68k/uclinux.h,
	* config/moxie/uclinux.h (TARGET_LIBC_HAS_FUNCTION): Move definitions
	to linux.h.
	* config/linux-android.h (TARGET_HAS_IFUNC_P): Move definition
	to linux.h.
	* config/linux.h (TARGET_LIBC_HAS_FUNCTION, TARGET_HAS_IFUNC_P):
	Define appropriately for Linux and uClinux targets.

From-SVN: r205780