lava-expect/spm-*-uart2.exp: Remove TODO comments

Replace TODO comments with pointers to the corresponding expect-post/
scripts.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Iae1c8a07f1a8660c29b47a198dc2dbeac29b80a6
diff --git a/lava-expect/spm-edk2-uart2.exp b/lava-expect/spm-edk2-uart2.exp
index d598d4b..b84b825 100644
--- a/lava-expect/spm-edk2-uart2.exp
+++ b/lava-expect/spm-edk2-uart2.exp
@@ -6,4 +6,4 @@
 # Expect script for Standalone MM partition UART2
 #
 
-# TODO
+# Handled by ../expect-post/spm-edk2-uart2.exp
diff --git a/lava-expect/spm-uart2.exp b/lava-expect/spm-uart2.exp
index c662671..5bee324 100644
--- a/lava-expect/spm-uart2.exp
+++ b/lava-expect/spm-uart2.exp
@@ -4,4 +4,4 @@
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
-# TODO
+# Handled by ../expect-post/spm-uart2.exp