test: exercise support for extended SPI/PPI in Hafnium

Multiple run fragments related to SPM have been updated to support
extended range of interrupts. Moreover, the corresponding build
configs has been updated to enable support for extended interrupt
range.

Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: Iaa945a45b1f910c0e4f12709267ff1cb5e68749b
diff --git a/tf_config/fvp-spm b/tf_config/fvp-spm
index 39cd1d1..f370e60 100644
--- a/tf_config/fvp-spm
+++ b/tf_config/fvp-spm
@@ -8,3 +8,5 @@
 CTX_INCLUDE_MTE_REGS=1
 BRANCH_PROTECTION=1
 SP_LAYOUT_FILE=${tftf_root}/build/fvp/${bin_mode}/sp_layout.json
+GIC_EXT_INTID=1
+PLAT_TEST_SPM=1