[NFC][SYCL] Move llvm.fpbuiltin tests to Transforms (#16847) #4258

Job	Run time
macOS / Build	14m 38s
Linux (Self build + no-assertions) / Build + LIT	8m 16s
build-win / Build + LIT	1h 4m 13s
e2e-lin (Intel Arc A-Series Graphics with Level Zero, ["Linux", "arc"], --param matrix-xmx8=True,... / Intel Arc A-Series Graphics with Level Zero	12m 30s
e2e-lin (Intel GEN12 Graphics with Level Zero, ["Linux", "gen12"], level_zero:gpu;opencl:fpga, true) / Intel GEN12 Graphics with Level Zero	31m 50s
e2e-lin (AMD/HIP, ["Linux", "amdgpu"], -u 1001 --device=/dev/dri --device=/dev/kfd, hip:gpu, false) / AMD/HIP	6m 46s
e2e-lin (Perf tests on Intel Arc A-Series Graphics system, ["Linux", "arc"], {"LIT_FILTER":"Perfo... / Perf tests on Intel Arc A-Series Graphics system	2m 26s
e2e-lin (Perf tests on Intel GEN12 Graphics system, ["Linux", "gen12"], {"LIT_FILTER":"Performanc... / Perf tests on Intel GEN12 Graphics system	2m 57s
e2e-win / Intel GEN12 Graphics with Level Zero	27m 56s
	2h 51m 32s

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