r300-gallium: Debugging for the more sensitive card registers.

These are nearly always the cause of hardlocks, so let's dump them.
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c
index 7b09a41..7bd3420 100644
--- a/src/gallium/drivers/r300/r300_emit.c
+++ b/src/gallium/drivers/r300/r300_emit.c
@@ -244,7 +244,7 @@
     }
     for (i = 0; i < 8; i++) {
         OUT_CS(rs->ip[i]);
-        //debug_printf("ip %d: 0x%08x\n", i, rs->ip[i]);
+        debug_printf("ip %d: 0x%08x\n", i, rs->ip[i]);
     }
 
     OUT_CS_REG_SEQ(R300_RS_COUNT, 2);
@@ -258,11 +258,11 @@
     }
     for (i = 0; i < 8; i++) {
         OUT_CS(rs->inst[i]);
-        //debug_printf("inst %d: 0x%08x\n", i, rs->inst[i]);
+        debug_printf("inst %d: 0x%08x\n", i, rs->inst[i]);
     }
 
-    /* debug_printf("count: 0x%08x inst_count: 0x%08x\n", rs->count,
-            rs->inst_count); */
+    debug_printf("count: 0x%08x inst_count: 0x%08x\n", rs->count,
+            rs->inst_count);
 
     END_CS;
 }
@@ -320,14 +320,22 @@
     OUT_CS_REG_SEQ(R300_VAP_OUTPUT_VTX_FMT_0, 2);
     OUT_CS(r300->vertex_info.vinfo.hwfmt[2]);
     OUT_CS(r300->vertex_info.vinfo.hwfmt[3]);
+    for (i = 0; i < 4; i++) {
+        debug_printf("hwfmt%d: 0x%08x\n", i,
+                r300->vertex_info.vinfo.hwfmt[i]);
+    }
 
     OUT_CS_REG_SEQ(R300_VAP_PROG_STREAM_CNTL_0, 8);
     for (i = 0; i < 8; i++) {
         OUT_CS(r300->vertex_info.vap_prog_stream_cntl[i]);
+        debug_printf("prog_stream_cntl%d: 0x%08x\n", i,
+                r300->vertex_info.vap_prog_stream_cntl[i]);
     }
     OUT_CS_REG_SEQ(R300_VAP_PROG_STREAM_CNTL_EXT_0, 8);
     for (i = 0; i < 8; i++) {
         OUT_CS(r300->vertex_info.vap_prog_stream_cntl_ext[i]);
+        debug_printf("prog_stream_cntl_ext%d: 0x%08x\n", i,
+                r300->vertex_info.vap_prog_stream_cntl_ext[i]);
     }
     END_CS;
 }