radeon: Include radeon_elf_util.c in the list of LLVM_C_FILES v2

This fixes the a build breakage caused by
6974eb9076 on build configurations where
all the following are true:

1. radeonsi is not being built
2. r600g is being built
3. opencl is disabled
4. --enable-r600-llvm-compiler is not being used
5. libelf is not installed

v2:
  - Add $(RADEON_CFLAGS) to libllvmradeon_la_CFLAGS

Tested-by: Brian Paul <brianp@vmware.com>

src/gallium/drivers/radeon/Makefile.am

@@ -17,6 +17,7 @@ noinst_LTLIBRARIES += libllvmradeon.la
 
 libllvmradeon_la_CFLAGS = \
 	$(GALLIUM_DRIVER_CFLAGS) \
+	$(RADEON_CFLAGS) \
 	$(LLVM_CFLAGS)
 
 libllvmradeon_la_SOURCES = \

src/gallium/drivers/radeon/Makefile.sources

@@ -1,6 +1,5 @@
 C_SOURCES := \
 	r600_buffer_common.c \
-	radeon_elf_util.c \
 	r600_pipe_common.c \
         r600_query.c \
 	r600_streamout.c \
@@ -11,6 +10,7 @@ C_SOURCES := \
 	radeon_vce_40_2_2.c
 
 LLVM_C_FILES := \
+	radeon_elf_util.c \
 	radeon_setup_tgsi_llvm.c \
 	radeon_llvm_emit.c \
 	radeon_llvm_util.c