See how first code shows full path to arm-eabi-strip
Second shows just "/arm-eabi-strip" - no full path... hum
===================================================================

SATURDAY SUCCESSFUL:
$mpath/kernel -type f -name *.ko`; for i in $ko; do /home/martin/SchutzhundAOKP-toolchain/prebuilts/gcc/linux-x86/arm/arm-eabi-4.7/bin/arm-eabi-strip --strip-unneeded $i; mv $i /home/martin/SchutzhundAOKP-toolchain/out/target/product/ace/system/lib/modules/; done; fi

TODAY NOBOOT:
$mpath/kernel -type f -name *.ko`; for i in $ko; do /arm-eabi-strip --strip-unneeded $i; mv $i /home/martin/SchutzhundAOKP/out/target/product/ace/system/lib/modules/; done; fi
/bin/bash: /arm-eabi-strip: No such file or directory