[PATCH] ARM: omap2: fix am43xx build without L2X0

[Tony Lindgren]

* Arnd Bergmann <arnd at arndb.de> [180404 10:27]:
> When CONFIG_CACHE_L2X0 is disabled, the am43xx specific suspend
> implemnentation fails to link:
> 
> arch/arm/mach-omap2/sleep43xx.o: In function `get_l2cache_base':
> (.text+0x180): undefined reference to `omap4_get_l2cache_base'
> 
> This adds an #ifdef protection around the code, like we do for am44xx.
> 
> Fixes: 41d37e61372f ("ARM: OMAP2+: Introduce low-level suspend code for AM43XX")
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>

Thanks, looks OK to me:

Acked-by: Tony Lindgren <tony at atomide.com>