recipes: Add missing pkgconfig class inherits

These recipes all use pkg-config in some way but were missing
dependencies on the tool, this patch adds them.

(From OE-Core rev: 2543b14dd0ca13005be0df027543431fc8e882ae)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-kernel/lttng/babeltrace_1.2.1.bb

@@ -6,7 +6,7 @@ BUGTRACKER = "https://bugs.lttng.org/projects/babeltrace"
 LICENSE = "MIT & GPLv2"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=76ba15dd76a248e1dd526bca0e2125fa"
 
-inherit autotools
+inherit autotools pkgconfig
 
 DEPENDS = "glib-2.0 util-linux popt"
 

meta/recipes-kernel/oprofile/oprofile.inc

@@ -22,7 +22,7 @@ SRC_URI = "file://opstart.patch \
            file://oprofile-root.patch \
            file://acinclude.m4"
 
-inherit autotools-brokensep
+inherit autotools-brokensep pkgconfig
 
 EXTRA_OECONF = "--with-kernel=${STAGING_KERNEL_DIR}  --without-x"
 do_configure () {

meta/recipes-kernel/powertop/powertop_2.5.bb

@@ -11,7 +11,7 @@ SRC_URI = "http://01.org/powertop/sites/default/files/downloads/powertop-${PV}.t
 SRC_URI[md5sum] = "806bbcbd44fcea1f807c9582fc1f7d3e"
 SRC_URI[sha256sum] = "8b2c08a555d79e1c428863470c41cb023971d74ba4801d80a05e35adeec23c0b"
 
-inherit autotools gettext
+inherit autotools gettext pkgconfig
 
 # we need to explicitly link with libintl in uClibc systems
 LDFLAGS += "${EXTRA_LDFLAGS}"

meta/recipes-kernel/sysprof/sysprof_git.bb

@@ -17,4 +17,4 @@ SRC_URI_append_mips64 = " file://rmb-mips.patch"
 
 S = "${WORKDIR}/git"
 
-inherit autotools
+inherit autotools pkgconfig