fix of gdb for sh4

Signed-off-by: Christian Ege <k4230r6@gmail.com>
Update of gdb patches for dora

Doro uses gdb 7.6 instead of 7.5.1 which is used by dylan.

Signed-off-by: Christian Ege <k4230r6@gmail.com>
removed libstb-hal from the BSP layer

The new location for libstb-hal is the meta-magpie layer.

Signed-off-by: Christian Ege <k4230r6@gmail.com>