drm/ast: Rename AST_IO_AR_PORT_WRITE to AST_IO_VGAARI_W

Rename AST_IO_AR_PORT_WRITE to AST_IO_VGAARI_W to align naming
in the driver with documentation. No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231017083653.10063-2-tzimmermann@suse.de

drivers/gpu/drm/ast/ast_drv.h

@@ -259,7 +259,7 @@ static inline bool __ast_gen_is_eq(struct ast_device *ast, unsigned long gen)
 #define IS_AST_GEN6(__ast)	__ast_gen_is_eq(__ast, 6)
 #define IS_AST_GEN7(__ast)	__ast_gen_is_eq(__ast, 7)
 
-#define AST_IO_AR_PORT_WRITE		(0x40)
+#define AST_IO_VGAARI_W			(0x40)
 #define AST_IO_MISC_PORT_WRITE		(0x42)
 #define AST_IO_VGA_ENABLE_PORT		(0x43)
 #define AST_IO_SEQ_PORT			(0x44)

drivers/gpu/drm/ast/ast_mode.c

@@ -321,14 +321,14 @@ static void ast_set_std_reg(struct ast_device *ast,
 	jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
 	for (i = 0; i < 20; i++) {
 		jreg = stdtable->ar[i];
-		ast_io_write8(ast, AST_IO_AR_PORT_WRITE, (u8)i);
-		ast_io_write8(ast, AST_IO_AR_PORT_WRITE, jreg);
+		ast_io_write8(ast, AST_IO_VGAARI_W, (u8)i);
+		ast_io_write8(ast, AST_IO_VGAARI_W, jreg);
 	}
-	ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x14);
-	ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x00);
+	ast_io_write8(ast, AST_IO_VGAARI_W, 0x14);
+	ast_io_write8(ast, AST_IO_VGAARI_W, 0x00);
 
 	jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
-	ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x20);
+	ast_io_write8(ast, AST_IO_VGAARI_W, 0x20);
 
 	/* Set GR */
 	for (i = 0; i < 9; i++)