Add ISR_EL1 to crash report

Bring ISR bits definition as a mnemonic for troublershooters as well.

Signed-off-by: Gerald Lejeune <gerald.lejeune@st.com>
diff --git a/bl31/aarch64/crash_reporting.S b/bl31/aarch64/crash_reporting.S
index ff91572..b22ce71 100644
--- a/bl31/aarch64/crash_reporting.S
+++ b/bl31/aarch64/crash_reporting.S
@@ -70,7 +70,8 @@
 		"tpidrro_el0", "dacr32_el2", "ifsr32_el2", "par_el1",\
 		"mpidr_el1", "afsr0_el1", "afsr1_el1", "contextidr_el1",\
 		"vbar_el1", "cntp_ctl_el0", "cntp_cval_el0", "cntv_ctl_el0",\
-		"cntv_cval_el0", "cntkctl_el1", "fpexc32_el2", "sp_el0", ""
+		"cntv_cval_el0", "cntkctl_el1", "fpexc32_el2", "sp_el0",\
+		"isr_el1", ""
 
 panic_msg:
 	.asciz "PANIC in EL3 at x30 = 0x"
@@ -338,6 +339,7 @@
 	mrs	x8, cntkctl_el1
 	mrs	x9, fpexc32_el2
 	mrs	x10, sp_el0
+	mrs	x11, isr_el1
 	bl	str_in_crash_buf_print
 
 	/* Get the cpu specific registers to report */