defconfig: 8092: turn on pc saving by default

Turn on program counter saving feature by default during boot init.
This avoids the need to enable it explicitly using sysfs.

Change-Id: I14e2313bbbd511dd5324bcab0a2a04e9f3b58fbc
Signed-off-by: Vignesh Radhakrishnan <vigneshr@codeaurora.org>