ARM: pxa: clean up set_pxa_fb_info

set_pxa_fb_info() has been a long-standing wart in the naming scheme
of the pxa_set_xxx_info() functions.  This renames the function, and
combines set_pxa_fb_parent() with set_pxa_fb_info().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index b49a2c2..e646b6d 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -725,7 +725,7 @@
 
 static void __init spitz_lcd_init(void)
 {
-	set_pxa_fb_info(&spitz_pxafb_info);
+	pxa_set_fb_info(NULL, &spitz_pxafb_info);
 }
 #else
 static inline void spitz_lcd_init(void) {}