fix(nxp/common/setup): increase soc name maximum length

Increate SoC name length as it is not enough for some
SoC personalities.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: I2142b4b5162dd3c9ab3afefcdc859063836d8bcc