Optimized ssymv and dsymv kernel LSX for LoongArch

Author: ErnstPeng

kernel/loongarch64/KERNEL.LOONGSON2K1000

@@ -88,9 +88,15 @@ ZSUMKERNEL = csum_lsx.S
 SGEMVNKERNEL = sgemv_n_lsx.S
 SGEMVTKERNEL = sgemv_t_lsx.S
 
+SSYMV_U_KERNEL = ssymv_U_lsx.S
+SSYMV_L_KERNEL = ssymv_L_lsx.S
+
 DGEMVNKERNEL = dgemv_n_lsx.S
 DGEMVTKERNEL = dgemv_t_lsx.S
 
+DSYMV_U_KERNEL = dsymv_U_lsx.S
+DSYMV_L_KERNEL = dsymv_L_lsx.S
+
 DGEMMKERNEL    = dgemm_kernel_8x4.S
 DGEMMINCOPY    = dgemm_ncopy_8_lsx.S
 DGEMMITCOPY    = dgemm_tcopy_8_lsx.S