CMSIS-DSP: Corrected compilation issue.

Compilation error when ROUNDING=ON in MVE code.

CMSIS/DSP/Source/SupportFunctions/arm_float_to_q15.c

@@ -69,6 +69,9 @@ void arm_float_to_q15(
     float32_t       maxQ = (float32_t) Q15_MAX;
     f32x4x2_t       tmp;
     q15x8_t         vecDst;
+#ifdef ARM_MATH_ROUNDING
+    float32_t in;
+#endif
 
 
     blkCnt = blockSize >> 3;

CMSIS/DSP/Source/SupportFunctions/arm_float_to_q31.c

@@ -72,6 +72,9 @@ void arm_float_to_q31(
     uint32_t         blkCnt;
     float32_t       maxQ = (float32_t) Q31_MAX;
     f32x4_t         vecDst;
+#ifdef ARM_MATH_ROUNDING
+    float32_t in;
+#endif
 
 
     blkCnt = blockSize >> 2U;

CMSIS/DSP/Source/SupportFunctions/arm_float_to_q7.c

@@ -70,6 +70,9 @@ void arm_float_to_q7(
     q15x8_t         evVec, oddVec;
     q7x16_t         vecDst;
     float32_t const *pSrcVec;
+#ifdef ARM_MATH_ROUNDING
+    float32_t in;
+#endif
 
     pSrcVec = (float32_t const *) pSrc;
     blkCnt = blockSize >> 4;