ARM: OMAP: AM35xx: convert 3517 detection/flags to AM35xx

Currently cpu_is_omap3517() actually detects any device in the AM35x
family (3517 and no-SGX version 3505.)  To make it more clear what is
being detected, convert the names from 3517 to AM35xx.

This adds a new soc_is_am35xx() which duplicates the cpu_is_omap3517().
In order to avoid cross-tree dependencies with clock-tree changes,
cpu_is_omap3517() is left until the clock changes are merged,
at which point cpu_is_omap3517() will be completely removed.

Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
[tony@atomide.com: change to use soc_is_omap instead]
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index bf33b4d..b19d1b4 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -90,7 +90,7 @@
 	musb_plat.mode = board_data->mode;
 	musb_plat.extvbus = board_data->extvbus;
 
-	if (cpu_is_omap3517()) {
+	if (soc_is_am35xx()) {
 		oh_name = "am35x_otg_hs";
 		name = "musb-am35x";
 	} else if (cpu_is_ti81xx()) {