Split P8 and P9 Hostboot and OCC packages

This was causing a couple of issues:
1) increased complexity in build files
2) It breaks the pkg-version patch detection/checksum
3) Failing to apply patches to would silently fail

The split makes this a bit easier and requires less custom code.

We keep the P9 hostboot/occ named hostboot/occ, so that day-to-day,
nobody notices a difference. The only difference you'll notice
is if doing POWER8 hostboot/occ development, as the package name
will be 'hostboot-p8' or 'occ-p8'.

Fixes: https://github.com/open-power/op-build/issues/876
Fixes: https://github.com/open-power/op-build/issues/1194
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/openpower/configs/habanero_defconfig b/openpower/configs/habanero_defconfig
index 1ceb7b6..eb582fc 100644
--- a/openpower/configs/habanero_defconfig
+++ b/openpower/configs/habanero_defconfig
@@ -39,7 +39,7 @@
 BR2_TARGET_ROOTFS_INITRAMFS=y
 BR2_OPENPOWER_PLATFORM=y
 BR2_OPENPOWER_POWER8=y
-BR2_HOSTBOOT_CONFIG_FILE="habanero.config"
+BR2_HOSTBOOT_P8_CONFIG_FILE="habanero.config"
 BR2_OPENPOWER_MACHINE_XML_TARGET_TYPES_OPENPOWER_XML=y
 BR2_OPENPOWER_MACHINE_XML_GITHUB_PROJECT_VALUE="habanero-xml"
 BR2_OPENPOWER_MACHINE_XML_VERSION="6a78496c286e284719a8201148a5088030b897de"
@@ -59,7 +59,6 @@
 BR2_OPENPOWER_TARGETING_ECC_FILENAME="HABANERO_HB.targeting.bin.ecc"
 BR2_PACKAGE_PETITBOOT=y
 BR2_PACKAGE_PETITBOOT_MTD=y
-BR2_OCC_BIN_FILENAME="occ.bin"
 BR2_CAPP_UCODE_BIN_FILENAME="cappucode.bin"
 BR2_PACKAGE_LOADKEYS=y
 BR2_IMA_CATALOG_DTS="POWER8"