Fix CMake compilation of BGEMM and SHGEMV kernels #6207

Job	Run time
build (ubuntu-latest, gfortran, make)	21m 40s
cross_build (alpha, alpha-linux-gnu, TARGET=EV4)	9m 2s
cross_build (mipsel, mipsel-linux-gnu, TARGET=MIPS1004K)	9m 8s
build (ubuntu-latest, flang, make)	23m 6s
msys2 (UCRT64, int64, Release)	1h 50m 18s
build (ubuntu-latest, gfortran, cmake)	46m 37s
build (macos-latest, gfortran, make)	13m 46s
build (macos-latest, gfortran, cmake)	43m 15s
build (ubuntu-latest, flang, cmake)	44m 7s
msys2 (UCRT64, int32, Release)	1h 51m 21s
msys2 (MINGW32, int32, Release)	1h 16m 20s
msys2 (CLANG64, int32, Release)	1h 16m 49s
cross_build (riscv64, riscv64-linux-gnu, TARGET=RISCV64_GENERIC)	7m 48s
cross_build (mips64el, mips64el-linux-gnuabi64, DYNAMIC_ARCH=1 TARGET=GENERIC)	9m 38s
msys2 (UCRT64, int32, None, mingw-w64-ucrt-x86_64, fc)	1h 33m 47s
neoverse_build	7m 57s
msys2 (CLANG64, int64, Release)	1h 15m 25s
	13h 0m 4s

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