jsonrpc: Disable coverage in default build
jsonrpc: Disable coverage in default build

Building with intrumentation is only useful during development or
optimization phases, in production, this will just make it slow and in
some cases not work where file system might be readonly.

If its needed then enable the packageconfig via a bbappend

Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

openembedded/meta-openembedded,lgirdk/meta-openembedded,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,rehsack/meta-openembedded,moto-timo/meta-openembedded,lgirdk/meta-openembedded,schnitzeltony/meta-openembedded,schnitzeltony/meta-openembedded,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,lgirdk/meta-openembedded,victronenergy/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,victronenergy/meta-openembedded,victronenergy/meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded,rehsack/meta-openembedded,lgirdk/meta-openembedded,lgirdk/meta-openembedded,VCTLabs/meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded,moto-timo/meta-openembedded,victronenergy/meta-openembedded,VCTLabs/meta-openembedded,VCTLabs/meta-openembedded,victronenergy/meta-openembedded,moto-timo/meta-openembedded,openembedded/meta-openembedded,victronenergy/meta-openembedded,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,rehsack/meta-openembedded,moto-timo/meta-openembedded,schnitzeltony/meta-openembedded,victronenergy/meta-openembedded,openembedded/meta-openembedded,openembedded/meta-openembedded,lgirdk/meta-openembedded,VCTLabs/meta-openembedded,schnitzeltony/meta-openembedded,lgirdk/meta-openembedded,moto-timo/meta-openembedded,rehsack/meta-openembedded