qemu/configs: enable DRM+QXL for x86 and x86_64

Allows for nicer framebuffer emulation under Qemu with the QXL xorg
driver.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

board/qemu/x86/linux-4.1.config

@@ -18,3 +18,5 @@ CONFIG_SND_HDA_INTEL=y
 CONFIG_EXT4_FS=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_DRM=y
+CONFIG_DRM_QXL=y

board/qemu/x86_64/linux-4.1.config

@@ -18,3 +18,5 @@ CONFIG_SND_HDA_INTEL=y
 CONFIG_EXT4_FS=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_DRM=y
+CONFIG_DRM_QXL=y