perf: build with NO_LIBCAP=1

Build with NO_LIBCAP=1. This is to resolve build issue.

Package perf is missing dependencies for the following libraries:
libcap.so.2

Signed-off-by: Yangbo Lu <[email protected]>

package/devel/perf/Makefile

@@ -48,6 +48,7 @@ MAKE_FLAGS = \
 	NO_LIBAUDIT=1 \
 	NO_LIBCRYPTO=1 \
 	NO_LIBUNWIND=1 \
+	NO_LIBCAP=1 \
 	CROSS_COMPILE="$(TARGET_CROSS)" \
 	CC="$(TARGET_CC)" \
 	LD="$(TARGET_CROSS)ld" \