log4cpp: Stop using RC as a variable
log4cpp: Stop using RC as a variable

This recipe cannot be parsed when using meta-mingw because ${RC} expands
to the Windows resource compiler. Let's use PRC instead to avoid that
problem.

Signed-off-by: Mike Crowe <347ead6348e936507920c15d2ae8266ac6ce9b49@mcrowe.com>
Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

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