drivers/gpu/arm/: Help out of source build tree

When builing with make O=<dir> option this fails
with errors since it cant find the header in the
relative tree, but prepending srctree is the right
thing to do here.

Signed-off-by: Khem Raj <raj.khem@gmail.com>

Author: kraj

drivers/gpu/arm/mali/Kbuild

@@ -25,7 +25,7 @@ MALI_ENABLE_CPU_CYCLES ?= 0
 # For customer releases the Linux Device Drivers will be provided as ARM proprietary and GPL releases:
 # The ARM proprietary product will only include the license/proprietary directory
 # The GPL product will only include the license/gpl directory
-ifeq ($(wildcard $(src)/linux/license/gpl/*),)
+ifeq ($(wildcard $(srctree)/$(src)/linux/license/gpl/*),)
     ccflags-y += -I$(src)/linux/license/proprietary
     ifeq ($(CONFIG_MALI400_PROFILING),y)
         $(error Profiling is incompatible with non-GPL license)
@@ -57,7 +57,7 @@ ifeq ($(MALI_PLATFORM_FILES),)
 ifeq ($(CONFIG_ARCH_EXYNOS4),y)
 EXTRA_DEFINES += -DMALI_FAKE_PLATFORM_DEVICE=1
 export MALI_PLATFORM=exynos4
-export MALI_PLATFORM_FILES_BUILDIN = $(notdir $(wildcard $(src)/platform/$(MALI_PLATFORM)/*.c))
+export MALI_PLATFORM_FILES_BUILDIN = $(notdir $(wildcard $(srctree)/$(src)/platform/$(MALI_PLATFORM)/*.c))
 export MALI_PLATFORM_FILES_ADD_PREFIX = $(addprefix platform/$(MALI_PLATFORM)/,$(MALI_PLATFORM_FILES_BUILDIN)) 
 endif
 endif

drivers/gpu/arm/ump/Kbuild

@@ -13,7 +13,7 @@
 CONFIG ?= default
 
 # Validate selected config
-ifneq ($(shell [ -d $(src)/arch-$(CONFIG) ] && [ -f  $(src)/arch-$(CONFIG)/config.h ] && echo "OK"), OK)
+ifneq ($(shell [ -d $(srctree)/$(src)/arch-$(CONFIG) ] && [ -f  $(srctree)/$(src)/arch-$(CONFIG)/config.h ] && echo "OK"), OK)
 $(warning Current directory is $(src))
 $(error No configuration found for config $(CONFIG). Check that arch-$(CONFIG)/config.h exists)
 else