vc4: Just put USE_VC4_SIMULATOR in DEFINES.

In the pipe-loader reworks, it was missed in one of the new directories it
was used.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

configure.ac

@@ -2173,7 +2173,9 @@ if test -n "$with_gallium_drivers"; then
             gallium_require_drm_loader
 
             PKG_CHECK_MODULES([SIMPENROSE], [simpenrose],
-                              [USE_VC4_SIMULATOR=yes], [USE_VC4_SIMULATOR=no])
+                              [USE_VC4_SIMULATOR=yes;
+                               DEFINES="$DEFINES -DUSE_VC4_SIMULATOR"],
+                              [USE_VC4_SIMULATOR=no])
             ;;
         xvirgl)
             HAVE_GALLIUM_VIRGL=yes

src/gallium/drivers/vc4/Automake.inc

@@ -6,8 +6,4 @@ TARGET_LIB_DEPS += \
 	$(top_builddir)/src/gallium/winsys/vc4/drm/libvc4drm.la \
 	$(top_builddir)/src/gallium/drivers/vc4/libvc4.la
 
-if USE_VC4_SIMULATOR
-TARGET_CPPFLAGS += -DUSE_VC4_SIMULATOR
-endif
-
 endif

src/gallium/drivers/vc4/Makefile.am

@@ -23,7 +23,6 @@ include Makefile.sources
 include $(top_srcdir)/src/gallium/Automake.inc
 
 if USE_VC4_SIMULATOR
-SIM_CFLAGS = -DUSE_VC4_SIMULATOR=1
 SIM_LDFLAGS = -lsimpenrose
 endif