gdb: replace AC_TRY_LINK in sanitize.m4 ... with AC_LINK_IFELSE + AC_LANG_PROGRAM. All changes in the generated configure file are insignificant whitespace changes. gdb/ChangeLog: * configure: Re-generate. * sanitize.m4: Replace AC_TRY_LINK with AC_LINK_IFELSE + AC_LANG_PROGRAM. Change-Id: I6fc4c39e10b28d2ade964e0d59a7f8ec0d3a272a