drivers/gpu/arm/utgard: Disable fbdev physical address check

hikey don't specific the base of fbdev reserve memery.
The reserve mememery is allocate dymanic, so it doesn't
need a check.

Signed-off-by: xinliang.liu <xinliang.liu@linaro.org>
diff --git a/drivers/gpu/arm/utgard/linux/mali_memory_external.c b/drivers/gpu/arm/utgard/linux/mali_memory_external.c
index dcc9a75..3733f2e 100644
--- a/drivers/gpu/arm/utgard/linux/mali_memory_external.c
+++ b/drivers/gpu/arm/utgard/linux/mali_memory_external.c
@@ -53,10 +53,12 @@
 	/* size must be a multiple of the system page size */
 	if (size % _MALI_OSK_MALI_PAGE_SIZE) MALI_ERROR(_MALI_OSK_ERR_INVALID_ARGS);
 
+#if 0
 	/* Validate the mali physical range */
 	if (_MALI_OSK_ERR_OK != mali_mem_validation_check(phys_addr, size)) {
 		return _MALI_OSK_ERR_FAULT;
 	}
+#endif
 
 	if (flag & _MALI_MAP_EXTERNAL_MAP_GUARD_PAGE) {
 		alloc->flags |= MALI_MEM_FLAG_MALI_GUARD_PAGE;