feat: support non-continuous memory regions

The multiple non-continuous memory regions are supported when the macro
LOSCFG_MEM_MUL_REGIONS is enabled. The array of the type LOS_MEM_REGION should be defined,
and each array element defines the start address and the length for each memory regions, \
begining from the lower address to the higher memory address.

close #I43XOP

Signed-off-by: kenneth <zhushangyuan@huawei.com>