This patch address a comment raised by Andreas here:

http://sourceware.org/ml/libc-ports/2012-11/msg00066.html

/Marcus

2012-11-20  Marcus Shawcroft  <marcus.shawcroft@linaro.org>

        * sysdeps/aarch64/fpu/s_fma.c (weak_alias_x):
        Remove and switch to weak_alias.
        * sysdeps/aarch64/fpu/s_fmin.c (weak_alias_x): Likewise.
        * sysdeps/aarch64/fpu/s_frint.c (weak_alias_x): Likewise.
        * sysdeps/aarch64/fpu/s_lrint.c (weak_alias_x): Likewise.
	* sysdeps/aarch64/fpu/s_lround.c (weak_alias_x): Likewise.