tgsi: Add missing SWZ opcode.

src/gallium/auxiliary/tgsi/util/tgsi_dump.c

@@ -395,7 +395,8 @@ static const char *TGSI_OPCODES_SHORT[TGSI_OPCODE_LAST] =
    "IFC",
    "BREAKC",
    "KIL",
-   "END"
+   "END",
+   "SWZ"
 };
 
 static const char *TGSI_SATS[] =

src/gallium/auxiliary/tgsi/util/tgsi_text.c

@@ -522,7 +522,8 @@ static const struct opcode_info opcode_info[TGSI_OPCODE_LAST] =
 { 1, 2, "IFC" },
 { 1, 2, "BREAKC" },
 { 1, 2, "KIL" },
-   { 0, 0, "END" }
+   { 0, 0, "END" },
+   { 1, 1, "SWZ" }
 };
 
 static boolean parse_instruction( struct translate_ctx *ctx )