angle: Fix mingw32 build with stdcall fixup

mingw-w64-angleproject/001-add-mingw-toolchain.patch

@@ -800,7 +800,7 @@ index a5075393b..bc8f4e2c6 100644
    if (current_cpu == "x86") {
      asmflags = [
        # When /safeseh is specified, the linker will only produce an image if it
-@@ -214,6 +215,14 @@ config("compiler") {
+@@ -214,6 +215,15 @@ config("compiler") {
      # the source file is a no-op.
      "/ignore:4221",
    ]
@@ -808,6 +808,7 @@ index a5075393b..bc8f4e2c6 100644
 +    cflags = [ "-msse3" ]
 +    if (current_cpu == "x86") {
 +      ldflags = [ "-m32" ]
++      ldflags += [ "-Wl,--enable-stdcall-fixup" ]
 +    } else if (current_cpu == "x64") {
 +      ldflags = [ "-m64" ]
 +    }

mingw-w64-angleproject/PKGBUILD

@@ -41,7 +41,7 @@ sha256sums=('SKIP'
             'SKIP'
             'SKIP'
             'SKIP'
-            '7c8e890af24101d88296b62bf47dbdc8d32b58190dedf9b89e5f10363b907a18'
+            '06dccfcdfe271177574572aa0601c61e1724f9b0ed939f399048323bf9e02be3'
             'd73b808fe69914ee9d9934fad79389706af2c1ac280c1c0296d1046c482febad'
             '0bd71b129c4c067bd73116aa21c0fb59d7a930ded6ab8b28d59aeb538b44bfd4'
             'bf878de3203a62e2a7f81bd4cd79237adc74804b4b692d9277da005ed56d4f2a'