package_rpm.bbclass: Fix matching of architecture independent packages

OE-Core changes the architecture independent RPM packages to use
"noarch" instead of "all". This change has been included in the commit
below:

,----
| commit 341810aff923ace6b1cc1e15e19383c4f8773b51
| Author: Alexander Kanavin <alexander.kanavin@linux.intel.com>
| Date:   Mon Jan 9 16:37:28 2017 +0200
|
|     package_rpm.bbclass: make architecture-independent .rpm packages
|     "noarch" instead of "all"
|
|     Too many places in dnf/rpm4 stack make that assumption; let's not
|     fight against it.
|
|     Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
`----

This is causing problems with machines that has "all" inside the
machine name.

Reported-by: Alexandru Palalau <ioan-alexandru.palalau@nxp.com>
(From OE-Core rev: 445ac7b3198885c67622b4303b010a85c3e3e61e)

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Ross Burton <ross.burton@intel.com>
(cherry picked from commit 3e4ddeab65d4d2e4aaf03d442c2a1a8c7a2ce8a2)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/package_rpm.bbclass

@@ -646,9 +646,13 @@ python do_package_rpm () {
     rpmbuild = d.getVar('RPMBUILD')
     targetsys = d.getVar('TARGET_SYS')
     targetvendor = d.getVar('HOST_VENDOR')
+
     # Too many places in dnf stack assume that arch-independent packages are "noarch".
     # Let's not fight against this.
-    package_arch = (d.getVar('PACKAGE_ARCH') or "").replace("-", "_").replace("all", "noarch")
+    package_arch = (d.getVar('PACKAGE_ARCH') or "").replace("-", "_")
+    if package_arch == "all":
+        package_arch = "noarch"
+
     sdkpkgsuffix = (d.getVar('SDKPKGSUFFIX') or "nativesdk").replace("-", "_")
     d.setVar('PACKAGE_ARCH_EXTEND', package_arch)
     pkgwritedir = d.expand('${PKGWRITEDIRRPM}/${PACKAGE_ARCH_EXTEND}')