defconfig: Enable CONFIG_PANIC_ON_RT_THROTTLING for remaining MSM targets

Panic when RT throttling occurs, so that any RT thread(s) hogging
the CPU can be identified and debugged.

Change-Id: I7031811f0cc49bf2d4e44e6c90a3220b082f50f8
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>