9000720979 Missing label on Empty project for EM4 from template

Signed-off-by: Yunlu Zhang <Yunlu.Zhang@synopsys.com>
9000720978 EM4/EM6 empty template projects for C++

Signed-off-by: Yunlu Zhang <Yunlu.Zhang@synopsys.com>
9000723305 Support ARC600/700 in compiler plugin

Support for 600 and 700 was returned back, this is supposed for '4.8-R4', but it
is also very useful for testing options enablement in this release.

Signed-off-by: Yunlu Zhang <Yunlu.Zhang@synopsys.com>