jq: add patch to fix y0, y1, j0 and j1 related build issue on uClibc

Our default uClibc configuration does not have DO_XSI_MATH=y, so it
lacks certain math functions. jq generates some wrappers for the libm
functions, even for functions that are not actually used by jq. By
simply removing those wrappers, we get jq to build on uClibc that have
DO_XSI_MATH disabled.

Fixes:

  http://autobuild.buildroot.org/results/831/831ffb0a37a8007b2a824659e46dbe9e6e710d6f/



Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>