vulkan: Update headers to 1.1.87

Key changes since 1.1.86:
* Added VK_FUCSHIA_imagepipe_surface

Test: build
Change-Id: I9e9967ee9ec1057ac89258f515d076dd91d13e55
diff --git a/vulkan/api/platform.api b/vulkan/api/platform.api
index 41f398d..a7c4c30 100644
--- a/vulkan/api/platform.api
+++ b/vulkan/api/platform.api
@@ -56,3 +56,6 @@
 
 // VK_USE_PLATFORM_XLIB_XRANDR_EXT
 @internal type u64 RROutput
+
+// VK_USE_PLATFORM_FUCHSIA
+@internal type u32 zx_handle_t
\ No newline at end of file