ARC defconfigs: enable some items
ARC defconfigs: enable some items

perf: UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
elfutils: UCLIBC_HAS_PROGRAM_INVOCATION_NAME

Signed-off-by: Vineet Gupta <af669d95a4c0de051445d4cafdbb2c5c4a2838be@synopsys.com>

wbx-github/uclibc-ng,brgl/uclibc-ng,wbx-github/uclibc-ng,wbx-github/uclibc-ng,kraj/uclibc-ng,brgl/uclibc-ng,brgl/uclibc-ng,brgl/uclibc-ng,kraj/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,wbx-github/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng