arm/convolve: Fix the vfp4 real convolution for h_len=12

Change-Id: Ic73f0746edd3f1f22bb1d79d4c64aa740691dd48
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/Transceiver52M/arch/arm/convolve_neon.S b/Transceiver52M/arch/arm/convolve_neon.S
index 637d150..8a023ff 100644
--- a/Transceiver52M/arch/arm/convolve_neon.S
+++ b/Transceiver52M/arch/arm/convolve_neon.S
@@ -92,8 +92,8 @@
 	vld2.32     {q8-q9}, [r4], r6
 	vld2.32   {q10-q11}, [r5], r6
 #ifdef HAVE_NEON_FMA
-	vfma.f32         q1,   q6, q0
-	vfma.f32         q3,   q7, q0
+	vmul.f32         q1,   q6, q0
+	vmul.f32         q3,   q7, q0
 	vfma.f32         q1,   q8, q2
 	vfma.f32         q3,   q9, q2
 	vfma.f32         q1,  q10, q4