Roll SwiftShader from 150bc8c1c215 to f0db6df92f88 (4 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/150bc8c1c215..f0db6df92f88

2022-08-31 capn@google.com Eliminate incorrect Exponent() function
2022-08-31 capn@google.com Optimize Frexp() zero handling
2022-08-31 capn@google.com Fix Frexp() for subnormal arguments under DAZ
2022-08-31 capn@google.com Move Frexp and Ldexp to ShaderCore

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-chromium-autoroll
Please CC swiftshader-eng+autoroll@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in SwiftShader: https://bugs.chromium.org/p/swiftshader/issues/entry
To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Cq-Include-Trybots: luci.chromium.try:linux_chromium_msan_rel_ng;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:linux-swangle-try-x64;luci.chromium.try:win-swangle-try-x86
Bug: None
Tbr: swiftshader-eng+autoroll@google.com
Change-Id: I434a9caf247b612b4ab30cc553ad3203353b1dc9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3867928
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1042055}