Fix patch file for Nature NDSP library for hifi3 (#2541)

BUG=327609938

tensorflow/lite/micro/tools/make/ext_libs/ndsplib-hifi3.patch

@@ -1,7 +1,45 @@
 diff --git a/library/include/NatureDSP_Signal_math.h b/library/include/NatureDSP_Signal_math.h
-index 2ffea63..eff0e47 100644
+index 2ffea63..adf08ab 100644
 --- a/library/include/NatureDSP_Signal_math.h
 +++ b/library/include/NatureDSP_Signal_math.h
+@@ -38,7 +38,7 @@ extern "C" {
+ vec_log Logarithm 
+ vec_antilog Antilogarithm 
+ vec_sqrt Square Root
+- vec_rsqrt Reciprocal Square Root
++ vec_rsqrt Reciprocal Square Root
+ vec_sine,vec_cosine Sine/Cosine
+ vec_tan Tangent 
+ vec_atan Arctangent 
+@@ -384,9 +384,9 @@ int32_t scl_sqrt64x32(int64_t x);
+ part left by exponent value.
+
+ Mantissa accuracy is 1 LSB, so relative accuracy is:
+- vec_rsqrt16x16, scl_rsqrt16x16 6.2e-5
+- scl_rsqrt32x32 2.4e-7
+- vec_rsqrt32x32 9.2e-10
++ vec_rsqrt16x16, scl_rsqrt16x16 6.2e-5
++ scl_rsqrt32x32 2.4e-7
++ vec_rsqrt32x32 9.2e-10
+
+ Precision: 
+ 16x16 16-bit inputs, 16-bit output. Accuracy: 2LSB
+@@ -406,11 +406,11 @@ int32_t scl_sqrt64x32(int64_t x);
+ ----------------
+ Returned packed value: 
+ scl_rsqrt32x32():
+- bits 23…0 fractional part
+- bits 31…24 exponent
++ bits 23�0 fractional part
++ bits 31�24 exponent
+ scl_rsqrt16x16():
+- bits 15…0 fractional part
+- bits 31…16 exponent
++ bits 15�0 fractional part
++ bits 31�16 exponent
+
+ -------------------------------------------------------------------------*/
+ void vec_rsqrt32x32 ( int32_t * frac, int16_t * exp, const int32_t * x, int N);
 @@ -635,6 +635,7 @@ float32_t scl_atan2f (float32_t y, float32_t x);
  return result, Q16.15 
  -------------------------------------------------------------------------*/
@@ -63,32 +101,30 @@ index 20206e4..74d4d42 100644
  #ifdef __cplusplus
  #define externC extern "C" 
 diff --git a/library/include_private/fft_real_twiddles.h b/library/include_private/fft_real_twiddles.h
-index 10cd4b2..c5fe6b9 100644
+index 10cd4b2..eb5765f 100644
 --- a/library/include_private/fft_real_twiddles.h
 +++ b/library/include_private/fft_real_twiddles.h
-@@ -44,7 +44,10 @@
+@@ -44,7 +44,9 @@
  7 128
  */
 
 +#if !defined MAX_RFFT_PWR
  #define MAX_RFFT_PWR 13
 +#endif
-+
  #define MAX_RFFT_LEN (1<<MAX_RFFT_PWR)
 
  extern const int16_t twiddleSplit[MAX_RFFT_LEN/2];
 diff --git a/library/include_private/fft_real_twiddles_24x24.h b/library/include_private/fft_real_twiddles_24x24.h
-index 3017c61..1e52320 100644
+index 3017c61..fd1e2ba 100644
 --- a/library/include_private/fft_real_twiddles_24x24.h
 +++ b/library/include_private/fft_real_twiddles_24x24.h
-@@ -44,7 +44,10 @@
+@@ -44,7 +44,9 @@
  7 128
  */
 
 +#if !defined MAX_RFFT_PWR
  #define MAX_RFFT_PWR 13
 +#endif
-+
  #define MAX_RFFT_LEN (1<<MAX_RFFT_PWR)
 
  extern const int32_t twiddleSplit24x24[MAX_RFFT_LEN/2];