freedreno/vulkan: fix Fuchsia build

Filename was inadvertently changed in 415a3876735d55fdd4736daa80aba5360140901e.

Bug: 388059711
Change-Id: I7d3badcbf78b13f35a0ae70b56aef88f3a0824db
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/1191736
Reviewed-by: Matt Sandy <msandy@google.com>
diff --git a/src/freedreno/vulkan/meson.build b/src/freedreno/vulkan/meson.build
index 9da8f36..8684eb6 100644
--- a/src/freedreno/vulkan/meson.build
+++ b/src/freedreno/vulkan/meson.build
@@ -113,7 +113,7 @@
   tu_deps += idep_u_magma
   libtu_files += files('tu_knl_magma.cc')
   if host_machine.system() == 'fuchsia'
-    libtu_files += files('tu_magma_buffer_collection')
+    libtu_files += files('tu_magma_buffer_collection.cc')
   endif
 endif