[kernel] Add note about DRM_TEGRA

[Josh Boyer]

commit 6bf2b12966a5b278f0c9f5458a90f2259fa1fdc6
Author: Josh Boyer <jwboyer at fedoraproject.org>
Date:   Mon Nov 18 08:56:27 2013 -0500

    Add note about DRM_TEGRA

 config-armv7 |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/config-armv7 b/config-armv7
index 365a431..fe04220 100644
--- a/config-armv7
+++ b/config-armv7
@@ -539,7 +539,9 @@ CONFIG_SND_SOC_TEGRA20_AC97=m
 CONFIG_SND_SOC_TEGRA30_AHUB=m
 CONFIG_SND_SOC_TEGRA30_I2S=m
 
-# CONFIG_DRM_TEGRA is not set # bool only, for some reason??
+# bool only, upstream aiming for modular in 3.14
+# https://lkml.org/lkml/2013/11/18/47
+# CONFIG_DRM_TEGRA is not set
 
 # AC100 (PAZ00)
 CONFIG_MFD_NVEC=y