arch: sparc: Fix 10.4 violations

Both operands of an operator in which the usual arithmetic
conversions are performed shall have the same essential
type category.

Signed-off-by: Flavio Ceolin <[email protected]>

Author: Flavio Ceolin

arch/sparc/core/fatal.c

@@ -179,11 +179,11 @@ static void print_backtrace(const z_arch_esf_t *esf)
 		const uint32_t pc = s->in[7];
 		const uint32_t sp = s->in[6];
 
-		if (sp == 0 && pc == 0) {
+		if (sp == 0U && pc == 0U) {
 			break;
 		}
 		LOG_ERR(" #%-2d  %08x   %08x", i, pc, sp);
-		if (sp == 0 || sp & 7) {
+		if (sp == 0U || sp & 7U) {
 			break;
 		}
 		s = (const struct savearea *) sp;

arch/sparc/core/irq_manage.c

@@ -31,7 +31,7 @@ void z_sparc_enter_irq(uint32_t irl)
 	_current_cpu->nested++;
 
 #ifdef CONFIG_IRQ_OFFLOAD
-	if (irl != 141) {
+	if (irl != 141U) {
 		irl = z_sparc_int_get_source(irl);
 		ite = &_sw_isr_table[irl];
 		ite->isr(ite->arg);