change sgemm kernel to 4x4 as the 16x4 altivec goes out of bounds

kernel/power/KERNEL.PPCG4

@@ -70,13 +70,13 @@ DSCALKERNEL	=  scal_ppc440.S
 CSCALKERNEL	= zscal_ppc440.S
 ZSCALKERNEL	= zscal_ppc440.S
 
-SGEMMKERNEL    =  gemm_kernel_altivec_g4.S
-SGEMMINCOPY    =  ../generic/gemm_ncopy_16.c
-SGEMMITCOPY    =  ../generic/gemm_tcopy_16.c
+SGEMMKERNEL    =  gemm_kernel_g4.S
+SGEMMINCOPY    = 
+SGEMMITCOPY    = 
 SGEMMONCOPY    =  gemm_ncopy_4.S
 SGEMMOTCOPY    =  gemm_tcopy_4.S
-SGEMMINCOPYOBJ =  sgemm_incopy$(TSUFFIX).$(SUFFIX)
-SGEMMITCOPYOBJ =  sgemm_itcopy$(TSUFFIX).$(SUFFIX)
+SGEMMINCOPYOBJ = 
+SGEMMITCOPYOBJ = 
 SGEMMONCOPYOBJ =  sgemm_oncopy$(TSUFFIX).$(SUFFIX)
 SGEMMOTCOPYOBJ =  sgemm_otcopy$(TSUFFIX).$(SUFFIX)
 DGEMMKERNEL    =  gemm_kernel_g4.S