Tools: Avoid hard-code in manifest tool

This patch adds a method in manifest tool to get configurations from
codes.
And then uses the configuration values to avoid hard-code numbers.

Change-Id: I2de17a1b777ffcd45aabff0d4f28388fce8ff2c2
Signed-off-by: Kevin Peng <kevin.peng@arm.com>
1 file changed