[Opus] Set correct -mfpu flag for both NEON and VFP

third_party/opus/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/arm.gni")
 import("//testing/test.gni")
 
 # If fixed point implementation shall be used (otherwise float).
 use_opus_fixed_point = current_cpu == "arm" || current_cpu == "arm64"
 
@@ skipping 376 matching lines @@
         "OPUS_ARM_MAY_HAVE_EDSP",
         "OPUS_ARM_MAY_HAVE_MEDIA",
         "OPUS_ARM_MAY_HAVE_NEON",
         "OPUS_ARM_MAY_HAVE_NEON_INTR",
         "OPUS_HAVE_RTCD",
       ]
 
       deps = [
         ":convert_rtcd_assembler",
       ]
-
-      configs -= [ "//build/config/compiler:compiler_arm_fpu" ]
-      cflags += [ "-mfpu=neon" ]
     }
   }
 }
 
 executable("opus_compare") {
   sources = [
     "src/src/opus_compare.c",
   ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
@@ skipping 97 matching lines @@
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [
     "//build/config/compiler:no_chromium_code",
     ":opus_test_config",
   ]
 
   deps = [
     ":opus",
   ]
 }