NMSIS: Add missing functions

- riscv_fir_decimate_f64
- riscv_fir_decimate_init_f64
- riscv_mat_init_f64

Signed-off-by: qiujiandong <qiujiandong@nucleisys.com>

Author: qiujiandong

NMSIS/DSP/Source/FilteringFunctions/Config.cmake

@@ -51,9 +51,11 @@ target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_correlate_q15.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_correlate_q31.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_correlate_q7.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_f32.c)
+target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_f64.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_fast_q15.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_fast_q31.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_init_f32.c)
+target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_init_f64.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_init_q15.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_init_q31.c)
 target_sources(NMSISDSP PRIVATE FilteringFunctions/riscv_fir_decimate_q15.c)

NMSIS/DSP/Source/MatrixFunctions/Config.cmake

@@ -4,6 +4,7 @@ cmake_minimum_required (VERSION 3.14)
 
 
 set(SRCF64 MatrixFunctions/riscv_mat_cholesky_f64.c
+MatrixFunctions/riscv_mat_init_f64.c
 MatrixFunctions/riscv_mat_inverse_f64.c
 MatrixFunctions/riscv_mat_ldlt_f64.c
 MatrixFunctions/riscv_mat_mult_f64.c