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/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c
index b734d84..8225e2e 100644
--- a/arch/arm/mach-pxa/cm-x2xx.c
+++ b/arch/arm/mach-pxa/cm-x2xx.c
@@ -379,7 +379,7 @@
 
 static void __init cmx2xx_init_display(void)
 {
-	set_pxa_fb_info(cmx2xx_display);
+	pxa_set_fb_info(NULL, cmx2xx_display);
 }
 #else
 static inline void cmx2xx_init_display(void) {}