gallium: rename p_util.c to u_rect.c (it only contains rect copy/fill helpers)

src/gallium/auxiliary/util/Makefile

@@ -6,7 +6,6 @@ LIBNAME = util
 C_SOURCES = \
 	p_debug.c \
 	p_tile.c \
-	p_util.c \
 	u_blit.c \
 	u_draw_quad.c \
 	u_gen_mipmap.c \
@@ -14,6 +13,7 @@ C_SOURCES = \
 	u_hash_table.c \
 	u_math.c \
 	u_mm.c \
+	u_rect.c \
 	u_simple_shaders.c \
 	u_snprintf.c \
 	u_time.c

src/gallium/auxiliary/util/SConscript

@@ -7,7 +7,6 @@ util = env.ConvenienceLibrary(
 		'p_debug_mem.c',
 		'p_debug_prof.c',
 		'p_tile.c',
-		'p_util.c',
 		'u_blit.c',
 		'u_draw_quad.c',
 		'u_gen_mipmap.c',
@@ -15,6 +14,7 @@ util = env.ConvenienceLibrary(
 		'u_hash_table.c',
 		'u_math.c',
 		'u_mm.c',
+		'u_rect.c',
 		'u_simple_shaders.c',
 		'u_snprintf.c',
 		'u_time.c',

src/gallium/auxiliary/util/p_util.c → src/gallium/auxiliary/util/u_rect.c

@@ -26,7 +26,7 @@
  **************************************************************************/
 
 /**
- * Miscellaneous utility functions.
+ * Rectangle-related helper functions.
  */