[Flang][OpenMP] Attempt to make map-types-and-sizes.f90 test more agnostic to other architectures

This test was updated by me recently, however, the newly
added CHECK-LABEL checks are breaking one of the RHEL
PowerPC buildbots as the functions appear to be generated
slightly different (in this case added attributes I think).

Author: agozillon

flang/test/Integration/OpenMP/map-types-and-sizes.f90

@@ -90,7 +90,7 @@ subroutine mapType_char
   !$omp end target
 end subroutine mapType_char
 
-!CHECK-LABEL: define void @maptype_ptr_explicit_() {
+!CHECK-LABEL: define {{.*}} @{{.*}}maptype_ptr_explicit_{{.*}}
 !CHECK: %[[ALLOCA:.*]] = alloca { ptr, i64, i32, i8, i8, i8, i8 }, i64 1, align 8
 !CHECK: %[[ALLOCA_GEP:.*]] = getelementptr { ptr, i64, i32, i8, i8, i8, i8 }, ptr %[[ALLOCA]], i32 1
 !CHECK: %[[ALLOCA_GEP_INT:.*]] = ptrtoint ptr %[[ALLOCA_GEP]] to i64
@@ -101,7 +101,7 @@ end subroutine mapType_char
 !CHECK: store i64 %[[DIV]], ptr %[[OFFLOAD_SIZE_ARR]], align 8
 
 
-!CHECK-LABEL: define void @maptype_allocatable_explicit_() {
+!CHECK-LABEL: define {{.*}} @{{.*}}maptype_allocatable_explicit_{{.*}}
 !CHECK: %[[ALLOCA:.*]] = alloca { ptr, i64, i32, i8, i8, i8, i8 }, i64 1, align 8
 !CHECK: %[[ALLOCA_GEP:.*]] = getelementptr { ptr, i64, i32, i8, i8, i8, i8 }, ptr %[[ALLOCA]], i32 1
 !CHECK: %[[ALLOCA_GEP_INT:.*]] = ptrtoint ptr %[[ALLOCA_GEP]] to i64