remoteproc/davinci: Mark error recovery as disabled

The Davinci remoteproc driver does not support error recovery at
present, so mark the corresponding remoteproc flag appropriately
so that the debugfs flag shows the value as 'disabled' by default.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>