spirv-tools: upgrade 2021.4 -> 2022.1

- General
 - Add SPIR-V 1.6 support to wasm build (#4674)
 - Improvements to disassembly within PassManager (#4677)
 - Basic support for SPIR-V 1.6 (#4663)
 - reflect debug (#4662)
 - Fix endianness of string literals (#4622)
- Optimizer
 - spirv-opt: add pass to Spread Volatile semantics (#4667)
 - Fix constant propagation and folding of FClamp instructions (#4651)
 - Manually fold floating point division by zero (#4637)
 - Allow ADCE to remove dead inputs (#4629)
- Linker
 - Linker improvements (#4679)
   * test/linker: Code factorisation and small tweaks
   * linker: Do not fail when going over limits
- Validator
  - val: interface struct with builtins must be Block (#4665)
- Fuzzer
  - Avoid id bound errors during opt fuzzing (#4658)
  - Avoid uninitialised read when parsing hex float (#4646)

https://github.com/KhronosGroup/SPIRV-Tools/blob/b1877de5cd776117050bd42f08d04b52bce16099/CHANGES

(From OE-Core rev: 17cfdd9e5193074d15ccdaff49dc76b3dc1904ab)

Signed-off-by: Jose Quaresma <quaresma.jose@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/spir/spirv-tools_2022.1.bb

@@ -7,7 +7,7 @@ SECTION = "graphics"
 LICENSE  = "Apache-2.0"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=3b83ef96387f14655fc854ddc3c6bd57"
 
-SRCREV = "ab8eb607750208066e2d57eff6a34dbaf05f5ada"
+SRCREV = "b1877de5cd776117050bd42f08d04b52bce16099"
 SRC_URI = "git://github.com/KhronosGroup/SPIRV-Tools.git;branch=master;protocol=https"
 UPSTREAM_CHECK_GITTAGREGEX = "^v(?P<pver>\d+(\.\d+)+)$"
 S = "${WORKDIR}/git"