kernel bump: 4.9.x-ti-rt: (4.9.81-ti-rt-r99)

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

configs/kernel.data

@@ -4,6 +4,6 @@ armv7 LTS414 4.14.19-armv7-x4
 bone-rt LTS414 4.14.19-bone-rt-r12
 ti LTS44 4.4.113-ti-r146
 ti LTS49 4.9.81-ti-r99
-ti-rt LTS49 4.9.80-ti-rt-r98
+ti-rt LTS49 4.9.81-ti-rt-r99
 ti LTS414 4.14.18-ti-r33
 ti-rt LTS414 4.14.18-ti-rt-r33