st/egl: Rename kms backend to drm.
The main use of the backend is to support EGL_MESA_drm_display. drm
should be a better name.
diff --git a/docs/egl.html b/docs/egl.html
index 4758267..d38f2dd 100644
--- a/docs/egl.html
+++ b/docs/egl.html
@@ -72,13 +72,13 @@
<li><code>--with-egl-platforms</code>
<p>List the platforms (window systems) to support. Its argument is a comma
-seprated string such as <code>--with-egl-platforms=x11,kms</code>. It decides
+seprated string such as <code>--with-egl-platforms=x11,drm</code>. It decides
the platforms a driver may support. The first listed platform is also used by
the main library to decide the native platform: the platform the EGL native
types such as <code>EGLNativeDisplayType</code> or
<code>EGLNativeWindowType</code> defined for.</p>
-<p>The available platforms are <code>x11</code>, <code>kms</code>,
+<p>The available platforms are <code>x11</code>, <code>drm</code>,
<code>fbdev</code>, and <code>gdi</code>. The <code>gdi</code> platform can
only be built with SCons.</p>