enable verbose output of kernel build if V=99 is passed

append V=1 to KERNEL_MAKEOPTS when $V (and therewith $KBUILD_VERBOSE) is set to 99

SVN-Revision: 31466

include/kernel-defaults.mk

@@ -22,6 +22,10 @@ ifneq (,$(KERNEL_CC))
   KERNEL_MAKEOPTS += CC="$(KERNEL_CC)"
 endif
 
+ifeq ($(KBUILD_VERBOSE),99)
+  KERNEL_MAKEOPTS += V=1
+endif
+
 export HOST_EXTRACFLAGS=-I$(STAGING_DIR_HOST)/include
 
 # defined in quilt.mk