Don't set no_clang_integrated_as for the disabled pixman asm on clang…

…/mingw

There's no external arm assembler to fall back on here. The
actual assembly is already disabled since 8072c36,
but passing the empty assembly file to any random external
assembler could end up producing an empty object file for the
host environment instead of the target, in a cross build.

This wasn't an issue as long as the clang compiler only was identified
as g++ within mkspecs, making no_clang_integrated_as a no-op. If
the mkspec actually identifies it as clang, this config can't
be added here.

Change-Id: I0f20b9b2a8d13b5e7e1b654e391d88b639c031bf
Reviewed-by: Allan Sandfeld Jensen <[email protected]>

src/gui/painting/painting.pri

@@ -127,7 +127,7 @@ AVX2_SOURCES += painting/qdrawhelper_avx2.cpp
 NEON_SOURCES += painting/qdrawhelper_neon.cpp painting/qimagescale_neon.cpp
 NEON_HEADERS += painting/qdrawhelper_neon_p.h
 NEON_ASM += ../3rdparty/pixman/pixman-arm-neon-asm.S painting/qdrawhelper_neon_asm.S
-!uikit:contains(QT_ARCH, "arm"): CONFIG += no_clang_integrated_as
+!uikit:!win32:contains(QT_ARCH, "arm"): CONFIG += no_clang_integrated_as
 !uikit:!win32:!contains(QT_ARCH, "arm64"): DEFINES += ENABLE_PIXMAN_DRAWHELPERS
 
 MIPS_DSP_SOURCES += painting/qdrawhelper_mips_dsp.cpp