SRAM patcher: convert omap24xx_sram_suspend to use runtime SRAM patcher

Use the runtime SRAM patcher to set register addresses in
omap24xx_sram_suspend.  The long symbol names are intended to help
disambiguate the symbols, now that they are global.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>