ltq-adsl-mei: fix build error

The file to patch doesn't exists. Due to the fact that a src directory
exists, the patch was never applied.

With 28502a92 the behaviour was changed and revealed the issue.

Signed-off-by: Mathias Kresin <dev@kresin.me>

package/kernel/lantiq/ltq-adsl-mei/patches/100_no-date-time.patch

---- a/src/drv_mei_cpe_linux.c
-+++ b/src/drv_mei_cpe_linux.c
-@@ -1400,8 +1400,8 @@ struct proc_entry {
- static void MEI_GetVersionProc(struct seq_file *s)
- {
-    seq_printf(s, "%s" MEI_DRV_CRLF, &MEI_WHATVERSION[4]);
--   seq_printf(s, "Compiled on %s, %s for Linux kernel %s (jiffies: %ld)" MEI_DRV_CRLF,
--                                    __DATE__, __TIME__, UTS_RELEASE, jiffies);
-+   seq_printf(s, "Compiled for Linux kernel %s (jiffies: %ld)" MEI_DRV_CRLF,
-+                                    UTS_RELEASE, jiffies);
- }
- 
- /**