Log Message:
orc: updated to 0.4.38

0.4.38

- x86: account for XSAVE when checking for AVX support, fixing usage on
  hardened linux kernels where AVX support has been disabled (L. E. Segovia)
- neon: Use the real intrinsics for divf and sqrtf (L. E. Segovia)
- orc.m4 for autotools is no longer shipped. If anyone still uses
  it they can copy it into their source tree (Tim-Philipp Müller)