am33xx: Correct gpmc_cfg->irqstatus/enable

Based on our usage of the GPMC, either with NOR or NAND we do not need
to be setting the irqstatus or irqenable bits and should clear them like
we have historically.

Signed-off-by: Tom Rini <trini@ti.com>

arch/arm/cpu/armv7/am33xx/mem.c

@@ -69,8 +69,8 @@ void gpmc_init(void)
 #endif
 	/* global settings */
 	writel(0x00000008, &gpmc_cfg->sysconfig);
-	writel(0x00000100, &gpmc_cfg->irqstatus);
-	writel(0x00000100, &gpmc_cfg->irqenable);
+	writel(0x00000000, &gpmc_cfg->irqstatus);
+	writel(0x00000000, &gpmc_cfg->irqenable);
 	writel(0x00000012, &gpmc_cfg->config);
 	/*
 	 * Disable the GPMC0 config set by ROM code