Replace call of celt_inner_prod_c() (step 1)

Should call celt_inner_prod().

This change is bit exact as original, except for x86 floating-point.
In x86 floating-point, it calls celt_inner_prod_sse() which may have
different output with the change of floating-point operations' orders.

Change-Id: Ia2381e2e198a84296ac28305183f15be842b3454

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
diff --git a/src/opus_multistream_encoder.c b/src/opus_multistream_encoder.c
index e56ad7f..032fc00 100644
--- a/src/opus_multistream_encoder.c
+++ b/src/opus_multistream_encoder.c
@@ -326,7 +326,7 @@
                freq[i] = 0;
          }
 
-         compute_band_energies(celt_mode, freq, tmpE, 21, 1, LM);
+         compute_band_energies(celt_mode, freq, tmpE, 21, 1, LM, arch);
          /* If we have multiple frames, take the max energy. */
          for (i=0;i<21;i++)
             bandE[i] = MAX32(bandE[i], tmpE[i]);