Prefix global quantizer functions with aom_

BUG=aomedia:1540

Change-Id: I1150c3340ad060a180a13bc888c49452477cfc24
diff --git a/aom_dsp/quantize.h b/aom_dsp/quantize.h
index 43c30ee..042ff1b 100644
--- a/aom_dsp/quantize.h
+++ b/aom_dsp/quantize.h
@@ -20,7 +20,7 @@
 extern "C" {
 #endif
 
-void quantize_b_adaptive_helper_c(
+void aom_quantize_b_adaptive_helper_c(
     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
     const int16_t *round_ptr, const int16_t *quant_ptr,
     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
@@ -51,7 +51,7 @@
     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
     const int16_t *scan, const int16_t *iscan);
 
-void highbd_quantize_b_adaptive_helper_c(
+void aom_highbd_quantize_b_adaptive_helper_c(
     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
     const int16_t *round_ptr, const int16_t *quant_ptr,
     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
@@ -80,14 +80,15 @@
     tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr,
     const int16_t *scan, const int16_t *iscan);
 
-void quantize_b_helper_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
-                         const int16_t *zbin_ptr, const int16_t *round_ptr,
-                         const int16_t *quant_ptr,
-                         const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,
-                         tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr,
-                         uint16_t *eob_ptr, const int16_t *scan,
-                         const int16_t *iscan, const qm_val_t *qm_ptr,
-                         const qm_val_t *iqm_ptr, const int log_scale);
+void aom_quantize_b_helper_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                             const int16_t *zbin_ptr, const int16_t *round_ptr,
+                             const int16_t *quant_ptr,
+                             const int16_t *quant_shift_ptr,
+                             tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                             const int16_t *dequant_ptr, uint16_t *eob_ptr,
+                             const int16_t *scan, const int16_t *iscan,
+                             const qm_val_t *qm_ptr, const qm_val_t *iqm_ptr,
+                             const int log_scale);
 
 void aom_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
                       const int16_t *zbin_ptr, const int16_t *round_ptr,
@@ -96,7 +97,7 @@
                       const int16_t *dequant_ptr, uint16_t *eob_ptr,
                       const int16_t *scan, const int16_t *iscan);
 
-void highbd_quantize_b_helper_c(
+void aom_highbd_quantize_b_helper_c(
     const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr,
     const int16_t *round_ptr, const int16_t *quant_ptr,
     const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr,