bruno_arm: Increase CONFIG_MMC_BLOCK_MINORS to 64

Change-Id: If4f9b25aaa8819845ad04cd9519bd39d57fb6ed1
diff --git a/arch/arm/configs/bruno_gfhd254_defconfig b/arch/arm/configs/bruno_gfhd254_defconfig
index bf5f253..f4106b0 100644
--- a/arch/arm/configs/bruno_gfhd254_defconfig
+++ b/arch/arm/configs/bruno_gfhd254_defconfig
@@ -220,7 +220,7 @@
 CONFIG_USB_SERIAL_KEYSPAN=y
 CONFIG_USB_SERIAL_PL2303=y
 CONFIG_MMC=y
-CONFIG_MMC_BLOCK_MINORS=16
+CONFIG_MMC_BLOCK_MINORS=64
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_BRCMSTB_BMEM=y