ramips: rt305x: enable M25P80 driver

Based on a patch by Sergiy <piratfm@gmail.com>

SVN-Revision: 27811

target/linux/ramips/rt305x/config-2.6.39

@@ -65,6 +65,7 @@ CONFIG_IMAGE_CMDLINE_HACK=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_IRQ_CPU=y
 # CONFIG_LEDS_GPIO is not set
+CONFIG_M25PXX_USE_FAST_READ=y
 CONFIG_MACH_NO_WESTBRIDGE=y
 # CONFIG_MII is not set
 # CONFIG_MINIX_FS_NATIVE_ENDIAN is not set
@@ -76,6 +77,7 @@ CONFIG_MIPS_RALINK=y
 CONFIG_MIPS_RAMIPS_NET=y
 # CONFIG_MTD_CFI_INTELEXT is not set
 CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_M25P80=y
 CONFIG_MTD_PHYSMAP=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NEED_PER_CPU_KM=y