Don't use m32 cflag for x86_64.

platform_tools/android/gyp/skia_android.gypi

Index: platform_tools/android/gyp/skia_android.gypi
diff --git a/platform_tools/android/gyp/skia_android.gypi b/platform_tools/android/gyp/skia_android.gypi
index 210a61a13f758d968aa3e42ad15355e06893b669..ace21ccae7a03e9492b4076601bebd72fb9dac5d 100644
--- a/platform_tools/android/gyp/skia_android.gypi
+++ b/platform_tools/android/gyp/skia_android.gypi
@@ -1,3 +1,4 @@
+#
 {
   'targets': [
     {
@@ -18,10 +19,10 @@
           [ 'skia_arch_type == "arm64"', {
             'android_arch%': "arm64-v8a",
           }],
-          [ 'skia_arch_type == "x86" and skia_arch_width == 32', {
+          [ 'skia_arch_type == "x86"', {
             'android_arch%': "x86",
           }],
-          [ 'skia_arch_type == "x86" and skia_arch_width == 64', {
+          [ 'skia_arch_type == "x86_64"', {
             'android_arch%': "x86_64",
           }],
           [ 'skia_arch_type == "mips" and skia_arch_width == 32', {