Fix use of bad stack in EL1 mode

Author: Daniel Rossier

so3/arch/arm64/exception.S

@@ -226,7 +226,7 @@ ENTRY(pre_ret_to_el1_with_spin)
 	// Set the CPU in EL1 mode to proceed with
 	// the bootstrap of the domain
 
-	mov	x2, #PSR_MODE_EL1t
+	mov	x2, #PSR_MODE_EL1h
 
 	// Make sure no interrupt coming from CPU #0 is
 	// interferring with other CPU bootstrap
@@ -271,7 +271,7 @@ ENTRY(pre_ret_to_el1)
 	// Set the CPU in EL1 mode to proceed with
 	// the bootstrap of the domain
 
-	mov	x2, #PSR_MODE_EL1t
+	mov	x2, #PSR_MODE_EL1h
 
 	// Make sure no interrupt coming from CPU #0 is
 	// interferring with other CPU bootstrap

so3/arch/arm64/head.S

@@ -424,7 +424,7 @@ install_el2_stub:
 	msr	vbar_el2, x0
 
 	/* spsr */
-	mov	x0, #(PSR_F_BIT | PSR_I_BIT | PSR_A_BIT | PSR_D_BIT | PSR_MODE_EL1t)
+	mov	x0, #(PSR_F_BIT | PSR_I_BIT | PSR_A_BIT | PSR_D_BIT | PSR_MODE_EL1h)
 	msr	spsr_el2, x0
 	msr	elr_el2, lr
 	mov	w0, #BOOT_CPU_MODE_EL2		// This CPU booted in EL2