ARM: qca: Skipping u-boot prompt during crashdump

If crashdump magic is found, should not allow user
to access u-boot prompt as tz will be in unsecure state.

Change-Id: Icdc94c33fb87664857bafa981950f9768794cf11
Signed-off-by: Gokul Sriram Palanisamy <gokulsri@codeaurora.org>
6 files changed