Fix paths to C kernels for nrm2
ifndef SNRM2KERNEL
-SNRM2KERNEL = nrm2.c
+SNRM2KERNEL = ../arm/nrm2.c
endif
ifndef DNRM2KERNEL
-DNRM2KERNEL = nrm2.c
+DNRM2KERNEL = ../arm/nrm2.c
endif
ifndef CNRM2KERNEL
-CNRM2KERNEL = znrm2.c
+CNRM2KERNEL = ../arm/znrm2.c
endif
ifndef ZNRM2KERNEL
-ZNRM2KERNEL = znrm2.c
+ZNRM2KERNEL = ../arm/znrm2.c
endif
ifndef SCABS_KERNEL
