fmc: bump to SDK 1.8

Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/fmc/fmc.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-FMC_VERSION = fsl-sdk-v1.5-rc3
+FMC_VERSION = fsl-sdk-v1.8
 FMC_SITE = git://git.freescale.com/ppc/sdk/fmc.git
 FMC_LICENSE = MIT
 FMC_LICENSE_FILES = COPYING