android: enable VK_ANDROID_native_buffer

Patch changes entrypoints generator to not skip this extension even
though it is set as disabled in the xml. We also need compilation
flag VK_USE_PLATFORM_ANDROID_KHR to be enabled.

It looks like this extension got disabled in commit 69f447553c.

v2: just remove the whole 'supported' attrib check + remove
    vk_icd.h compilation fix (fix in VulkanHeaders instead)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

Android.common.mk

@@ -73,6 +73,7 @@ LOCAL_CFLAGS += \
 	-DHAVE_ENDIAN_H \
 	-DHAVE_ZLIB \
 	-DMAJOR_IN_SYSMACROS \
+	-DVK_USE_PLATFORM_ANDROID_KHR \
 	-fvisibility=hidden \
 	-Wno-sign-compare
 

src/intel/vulkan/anv_entrypoints_gen.py

@@ -495,9 +495,6 @@ def get_entrypoints(doc, entrypoints_to_defines, start_index):
         if ext_name not in supported_exts:
             continue
 
-        if extension.attrib['supported'] != 'vulkan':
-            continue
-
         ext = supported_exts[ext_name]
         ext.type = extension.attrib['type']