Make efifb as a loadable module

efifb.patch

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 8ea45a5..de3c96e 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -760,7 +760,7 @@ config FB_VESA
          read <file:Documentation/fb/vesafb.txt>. If unsure, say Y.

 config FB_EFI
-       bool "EFI-based Framebuffer Support"
+       tristate "EFI-based Framebuffer Support"
        depends on (FB = y) && X86 && EFI
        select FB_CFB_FILLRECT
        select FB_CFB_COPYAREA
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 95d293b..d62fc8a 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -91,7 +107,7 @@ static int efifb_setup(char *options)
                while ((this_opt = strsep(&options, ",")) != NULL) {
                        if (!*this_opt) continue;

-                       for (i = 0; i < M_UNKNOWN; i++) {
+                       /*for (i = 0; i < M_UNKNOWN; i++) {
                                if (efifb_dmi_list[i].base != 0 &&
                                    !strcmp(this_opt, efifb_dmi_list[i].optname)) {
                                        screen_info.lfb_base = efifb_dmi_list[i].base;
@@ -99,7 +115,7 @@ static int efifb_setup(char *options)
                                        screen_info.lfb_width = efifb_dmi_list[i].width;
                                        screen_info.lfb_height = efifb_dmi_list[i].height;
                                }
-                       }
+                       }*/
                        if (!strncmp(this_opt, "base:", 5))
                                screen_info.lfb_base = simple_strtoul(this_opt+5, NULL, 0);
                        else if (!strncmp(this_opt, "stride:", 7))