CIRCT converter: rename portSyms to portSymbols

[SpriteOvO]

Follow up the upstream PR llvm/circt#7734.

[sequencer]

tests still failed with:

[430/430] lit[2.13.15].run
[lit] -- Testing: 7 tests, 7 workers --
[lit] PASS: CHISEL :: Property/Bad.sc (1 of 7)
[lit] PASS: CHISEL :: Converter/Circuit.sc (2 of 7)
[lit] PASS: CHISEL :: Converter/Debug.sc (3 of 7)
[lit] PASS: CHISEL :: Converter/Module.sc (4 of 7)
[lit] FAIL: CHISEL :: Property/DocExample.sc (5 of 7)
[lit] PASS: CHISEL :: Property/Good.sc (6 of 7)
[lit] PASS: CHISEL :: SmokeTest.sc (7 of 7)
[lit] ********************
[lit] Failed Tests (1):
[lit]   CHISEL :: Property/DocExample.sc
[lit]
[lit]
[lit] Testing Time: 42.93s
[lit]
[lit] Total Discovered Tests: 7
[lit]   Passed: 6 (85.71%)
[lit]   Failed: 1 (14.29%)

[SpriteOvO]

@sequencer Can you provide the failure logs? I cannot reproduce it on my machine.

[473/860] lit[2.13.15].run 
[lit] -- Testing: 7 tests, 7 workers --
[lit] PASS: CHISEL :: Property/Bad.sc (1 of 7)
[lit] PASS: CHISEL :: Converter/Circuit.sc (2 of 7)
[lit] PASS: CHISEL :: Converter/Debug.sc (3 of 7)
[lit] PASS: CHISEL :: Converter/Module.sc (4 of 7)
[lit] PASS: CHISEL :: Property/DocExample.sc (5 of 7)
[lit] PASS: CHISEL :: Property/Good.sc (6 of 7)
[lit] PASS: CHISEL :: SmokeTest.sc (7 of 7)
[lit] 
[lit] Testing Time: 26.75s
[lit] 
[lit] Total Discovered Tests: 7
[lit]   Passed: 7 (100.00%)

[sequencer]

It must be a cosmic ray:( It now passed on my side at the same environment. we should add CI for lit.