omap: rx51: Switch rx51_tpa6130a2_data __initdata to__initdata_or_module

If the TPA6130 is compiled as module the id and power_gpio values are
arbitrary at module probing time since the rx51_tpa6130a2_data was marked as
__initdata. Fix this by using __initdata_or_module. Then __initdata is
defined only if the kernel is built without CONFIG_MODULES and omitted
otherwise.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-rx51-peripherals.c

@@ -722,7 +722,7 @@ static struct twl4030_platform_data rx51_twldata __initdata = {
 	.vio			= &rx51_vio,
 };
 
-static struct tpa6130a2_platform_data rx51_tpa6130a2_data __initdata = {
+static struct tpa6130a2_platform_data rx51_tpa6130a2_data __initdata_or_module = {
 	.id			= TPA6130A2,
 	.power_gpio		= 98,
 };