change the config to the cpuarch

Signed-off-by: Toshaan Bharvani <toshaan@powerel.org>

SPECS/kernel-5.15.spec

@@ -1,7 +1,7 @@
 %global __spec_install_pre %{___build_pre}
 
 # Define the version of the Linux Kernel Archive tarball.
-%define LKAver 5.15.41
+%define LKAver 5.15.46
 
 # Define the buildid, if required.
 #define buildid .
@@ -373,7 +373,7 @@ BuildKernel() {
     if [ -z "${Flavour}" ]; then
         %{__cp} config-%{cpuarch} .config
     else
-        %{__cp} config-%{_target_cpu}-${Flavour} .config
+        %{__cp} config-%{cpuarch}-${Flavour} .config
     fi
 
     %define KVRFA %{version}-%{release}${Flavour}.%{_target_cpu}