am 03579da2: Merge "Add a few more missing libm long double stubs."

# Via Elliott Hughes (1) and Gerrit Code Review (1)
* commit '03579da2d91a57a0f22da14e4216ecaf811869f4':
  Add a few more missing libm long double stubs.
diff --git a/libm/fake_long_double.c b/libm/fake_long_double.c
index 9b934d2..fab32fe 100644
--- a/libm/fake_long_double.c
+++ b/libm/fake_long_double.c
@@ -39,6 +39,7 @@
 long double cbrtl(long double a1) { return cbrt(a1); }
 long double copysignl(long double a1, long double a2) { return copysign(a1, a2); }
 long double coshl(long double a1) { return cosh(a1); }
+long double cosl(long double a1) { return cos(a1); }
 long double erfcl(long double a1) { return erfc(a1); }
 long double erfl(long double a1) { return erf(a1); }
 long double expm1l(long double a1) { return expm1(a1); }
@@ -64,6 +65,8 @@
 long double scalbnl(long double a1, int a2) { return scalbn(a1, a2); }
 long double significandl(long double a1) { return significand(a1); }
 long double sinhl(long double a1) { return sinh(a1); }
+long double sinl(long double a1) { return sin(a1); }
 long double sqrtl(long double a1) { return sqrt(a1); }
 long double tanhl(long double a1) { return tanh(a1); }
+long double tanl(long double a1) { return tan(a1); }
 long double tgammal(long double a1) { return tgamma(a1); }