spl: mmc: Fix spl_mmc_get_uboot_raw_sector() implementation

The call to spl_mmc_get_uboot_raw_sector() completely ignores and
overwrites the raw_sect value passed from the caller of spl_mmc_load().

Fix this by passing raw_sect to the function and returning the same
value in the default case.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/arch/arm/mach-imx/imx8/image.c b/arch/arm/mach-imx/imx8/image.c
index c956a80..e6b2996 100644
--- a/arch/arm/mach-imx/imx8/image.c
+++ b/arch/arm/mach-imx/imx8/image.c
@@ -197,7 +197,8 @@
 #endif
 
 #ifdef CONFIG_SPL_MMC_SUPPORT
-unsigned long spl_mmc_get_uboot_raw_sector(struct mmc *mmc)
+unsigned long spl_mmc_get_uboot_raw_sector(struct mmc *mmc,
+					   unsigned long raw_sect)
 {
 	int end;