[LA64_DYNAREC] Fixed a typo in GETGB #4074

Job	Run time
build (X64, Release, ubuntu-latest)	2m 9s
build (X64, Trace, ubuntu-latest)	1m 53s
build (X64, Box32, ubuntu-latest)	1m 43s
build (RISCV, Release, ubuntu-latest)	5m 24s
build (RISCV, Trace, ubuntu-latest)	5m 59s
build (RISCV, StaticBuild, ubuntu-latest)	4m 2s
build (RISCV, Box32, ubuntu-latest)	5m 42s
build (RK3588, Release, ubuntu-latest)	5m 32s
build (RK3588, Trace, ubuntu-latest)	5m 23s
build (RK3588, StaticBuild, ubuntu-latest)	4m 1s
build (RK3588, Box32, ubuntu-latest)	5m 33s
build (ARM64, Release, ubuntu-latest)	5m 22s
build (ARM64, Trace, ubuntu-latest)	5m 30s
build (ARM64, StaticBuild, ubuntu-latest)	3m 48s
build (ARM64, Box32, ubuntu-latest)	5m 37s
build (ANDROID, Release, ubuntu-latest)	2m 9s
build (ANDROID, Trace, ubuntu-latest)	2m 32s
build (TERMUX, Release, ubuntu-latest)	2m 12s
build (TERMUX, Trace, ubuntu-latest)	2m 25s
build (LARCH64, Release, ubuntu-latest)	3m 26s
build (LARCH64, Trace, ubuntu-latest)	3m 31s
build (LARCH64, StaticBuild, ubuntu-latest)	1m 48s
build (LARCH64, Box32, ubuntu-latest)	3m 39s
	1h 29m 20s

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