Set CFLAGS and temporary param_path for Zen 5 #1704

Job	Run time
Ubuntu GCC, Code Coverage (x10)	28m 47s
GCC build regression check (no tests)	1m 1s
Ubuntu ARM (x5)	12m 32s
Ubuntu GCC with NTL (assert, x2)	7m 59s
macOS-M1, Clang (x3)	8m 1s
Ubuntu Clang, BLAS and examples (x5)	12m 20s
MSVC (x1)	10m 10s
MinGW GCC (x0.5)	11m 7s
Alpine Linux, musl, 32-bit (assert, x1.5)	14m 3s
Nemo.jl	18m 51s
	2h 4m 51s

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