gallium: add CONSTBUF type to tgsi_file_type

This will be use to distinguish between load types when using
the TGSI_OPCODE_LOAD opcode.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/gallium/auxiliary/tgsi/tgsi_strings.c

@@ -57,6 +57,7 @@ static const char *tgsi_file_names[] =
    "SVIEW",
    "BUFFER",
    "MEMORY",
+   "CONSTBUF",
 };
 
 const char *tgsi_semantic_names[TGSI_SEMANTIC_COUNT] =

src/gallium/include/pipe/p_shader_tokens.h

@@ -74,6 +74,7 @@ enum tgsi_file_type {
    TGSI_FILE_SAMPLER_VIEW,
    TGSI_FILE_BUFFER,
    TGSI_FILE_MEMORY,
+   TGSI_FILE_CONSTBUF,
    TGSI_FILE_COUNT,      /**< how many TGSI_FILE_ types */
 };