Change uma_resource() to use new type IORESOURCE_UMA_FB.

MTRR setup code can detect this and mark it as UC/WT/WC as suitable
for the specific hardware.

Change-Id: Ib7a3d450fc7c19e3ca72767dfb350412dd35c971
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1214
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

src/include/device/resource.h

@@ -20,6 +20,8 @@
 						 * to the bus below.
 						 */
 #define IORESOURCE_BRIDGE	0x00080000	/* The IO resource has a bus below it. */
+#define IORESOURCE_UMA_FB	0x00100000	/* UMA framebuffer */
+
 #define IORESOURCE_RESERVE	0x10000000	/* The resource needs to be reserved in the coreboot table */
 #define IORESOURCE_STORED	0x20000000	/* The IO resource assignment has been stored in the device */
 #define IORESOURCE_ASSIGNED	0x40000000	/* An IO resource that has been assigned a value */