multimedia/libdvbcsa: fix build on powerpc*
libtool: compile: cc -DHAVE_CONFIG_H -I. -I.. -Wall -O2 -pipe -fstack-protector-strong -fno-strict-aliasing -O3 -fomit-frame-pointer -D_XOPEN_SOURCE=600 -maltivec -mabi=altivec -MT dvbcsa_algo.lo -MD -MP -MF .deps/dvbcsa_algo.Tpo -c dvbcsa_algo.c -fPIC -DPIC -o .libs/dvbcsa_algo.o
cc: error: unsupported option '-mabi=' for target 'powerpc64le-unknown-freebsd14.1'