mmc: bcm2835_sdhci: add missing include

Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>

drivers/mmc/bcm2835_sdhci.c

@@ -40,6 +40,7 @@
 #include <malloc.h>
 #include <sdhci.h>
 #include <asm/arch/timer.h>
+#include <asm/arch-bcm2835/sdhci.h>
 
 /* 400KHz is max freq for card ID etc. Use that as min */
 #define MIN_FREQ 400000